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A review of cardiopulmonary research in brazilian medical journals: clinical, surgical and epidemiological data

SERRANO, Carlos; SILVA, Mauricio Rocha e
Fonte: Faculdade de Medicina / USP Publicador: Faculdade de Medicina / USP
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
45.51%
Research in the field of cardiopulmonary disease in Brazil has been very active in recent decades. The combination of PUBMED, SCieLO, open access and online searching has provided a significant increase in the visibility of Brazilian journals. This newly acquired international visibility has in turn resulted in the appearance of more original research reports in the Brazilian scientific press. This review is intended to highlight part of this work for the benefit of the readers of "Clinics." We searched through PUBMED for noteworthy articles published in Brazilian medical journals included in the Journal of Citation Reports of the Institute of Scientific Information to better expose them to our readership. The following journals were examined: "Arquivos Brasileiros de Cardiologia," "Arquivos Brasileiros de Endocrinologia e Metabologia," "Brazilian Journal of Medical and Biological Reviews," "Jornal Brasileiro de Pneumologia," "Jornal de Pediatria," "Revista Brasileira de Cirurgia Cardiovascular," "Revista da Associação Médica Brasileira," Revista da Escola de Enfermagem U.S.P." and "São Paulo Medical Journal." These journals publish original investigations in the field of cardiopulmonary disease. The search produced 71 references...

A review of cardiopulmonary research in brazilian medical journals: clinical, surgical and epidemiological data

Serrano,Carlos; Silva,Mauricio Rocha e
Fonte: Faculdade de Medicina / USP Publicador: Faculdade de Medicina / USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2010 EN
Relevância na Pesquisa
45.51%
Research in the field of cardiopulmonary disease in Brazil has been very active in recent decades. The combination of PUBMED, SCieLO, open access and online searching has provided a significant increase in the visibility of Brazilian journals. This newly acquired international visibility has in turn resulted in the appearance of more original research reports in the Brazilian scientific press. This review is intended to highlight part of this work for the benefit of the readers of "Clinics." We searched through PUBMED for noteworthy articles published in Brazilian medical journals included in the Journal of Citation Reports of the Institute of Scientific Information to better expose them to our readership. The following journals were examined: "Arquivos Brasileiros de Cardiologia," "Arquivos Brasileiros de Endocrinologia e Metabologia," "Brazilian Journal of Medical and Biological Reviews," "Jornal Brasileiro de Pneumologia," "Jornal de Pediatria," "Revista Brasileira de Cirurgia Cardiovascular," "Revista da Associação Médica Brasileira," Revista da Escola de Enfermagem U.S.P." and "São Paulo Medical Journal." These journals publish original investigations in the field of cardiopulmonary disease. The search produced 71 references...

Quality of nonstructured and structured abstracts of original research articles in the British Medical Journal, the Canadian Medical Association Journal and the Journal of the American Medical Association.

Taddio, A; Pain, T; Fassos, F F; Boon, H; Ilersich, A L; Einarson, T R
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em 15/05/1994 EN
Relevância na Pesquisa
55.51%
OBJECTIVE: To assess and compare the quality of nonstructured and structured abstracts of original research articles in three medical journals. DESIGN: Blind, criterion-based observational study. SAMPLE: Random sample of 300 abstracts (25 abstracts per journal each year) of articles published in the British Medical Journal (BMJ), the Canadian Medical Association Journal and the Journal of the American Medical Association (JAMA) in 1988 and 1989 (nonstructured abstracts) and in 1991 and 1992 (structured abstracts). MAIN OUTCOME MEASURES: The quality of abstracts was measured against 33 objective criteria, which were divided into eight categories (purpose, research design, setting, subjects, intervention, measurement of variables, results and conclusions). The quality score was determined by dividing the number of criteria present by the number applicable; the score varied from 0 to 1. RESULTS: The overall mean quality scores for nonstructured and structured abstracts were 0.57 and 0.74 respectively (p < 0.001). The frequency in meeting the specific criteria was generally higher for the structured abstracts than for the nonstructured ones. The mean quality score was higher for nonstructured abstracts in JAMA than for those in BMJ (0.60 v. 0.54...

Scientific quality of original research articles on environmental tobacco smoke

Barnes, D. E.; Bero, L. A.
Fonte: BMJ Group Publicador: BMJ Group
Tipo: Artigo de Revista Científica
Publicado em /03/1997 EN
Relevância na Pesquisa
45.55%
OBJECTIVE: To evaluate the scientific quality of original research articles on the health effects of environmental tobacco smoke; to determine whether poor article quality is associated with publication in non-peer-reviewed symposium proceedings or with other article characteristics. DESIGN: Cross sectional study of original research articles on the health effects of environmental tobacco smoke published in peer reviewed journals and non-peer-reviewed symposium proceedings from 1980 to 1994. Article quality was assessed by two independent reviewers who used a valid and reliable instrument, were unaware of study hypotheses, were blinded to identifying characteristics of articles, and had no disclosed conflicts of interest. PARTICIPANTS: All symposium articles (n = 68) and a random sample of peer reviewed journal articles (n = 68) that satisfied inclusion/exclusion criteria. MAIN OUTCOME MEASURE: Mean quality scores, which could range from 0 (lowest quality) to 1 (highest quality). RESULTS: Using multivariate regression analysis, symposium articles were of poorer scientific quality than peer reviewed journal articles when controlling simultaneously for the effects of study design, article conclusion, article topic, and source of funding acknowledged (P = 0.027). Article quality was not associated with either source of funding acknowledged or article conclusion in multivariate analyses. CONCLUSIONS: In published reports on environmental tobacco smoke...

Use of an Electronic Medical Record for the Identification of Research Subjects with Diabetes Mellitus

Wilke, Russell A.; Berg, Richard L.; Peissig, Peggy; Kitchner, Terrie; Sijercic, Bozana; McCarty, Catherine A.; McCarty, Daniel J.
Fonte: © 2007. Clinical Medicine & Research Publicador: © 2007. Clinical Medicine & Research
Tipo: Artigo de Revista Científica
Publicado em /03/2007 EN
Relevância na Pesquisa
55.43%
Diabetes mellitus is a rapidly increasing and costly public health problem. Large studies are needed to understand the complex gene-environment interactions that lead to diabetes and its complications. The Marshfield Clinic Personalized Medicine Research Project (PMRP) represents one of the largest population-based DNA biobanks in the United States. As part of an effort to begin phenotyping common diseases within the PMRP, we now report on the construction of a diabetes case-finding algorithm using electronic medical record data from adult subjects aged ≥50 years living in one of the target PMRP ZIP codes. Based upon diabetic diagnostic codes alone, we observed a false positive case rate ranging from 3.0% (in subjects with the highest glycosylated hemoglobin values) to 44.4% (in subjects with the lowest glycosylated hemoglobin values). We therefore developed an improved case finding algorithm that utilizes diabetic diagnostic codes in combination with clinical laboratory data and medication history. This algorithm yielded an estimated prevalence of 24.2% for diabetes mellitus in adult subjects aged ≥50 years.

Recruiting Healthy Volunteers for Research Participation via Internet Advertising

Bramstedt, Katrina A.
Fonte: © 2007. Clinical Medicine & Research Publicador: © 2007. Clinical Medicine & Research
Tipo: Artigo de Revista Científica
Publicado em /06/2007 EN
Relevância na Pesquisa
55.43%
Objective: The Internet is frequently used as a tool to recruit research subjects, and the US Food and Drug Administration (FDA) provides general guidance regarding such advertising. The goal of this study was to explore the incidence and nature of ethically inappropriate recruiting advertisements on the Internet and to provide descriptive guidance to researchers for responsible Internet recruiting.

A Molecular Genetics Laboratory Course Applying Bioinformatics and Cell Biology in the Context of Original Research

Brame, Cynthia J.; Pruitt, Wendy M.; Robinson, Lucy C.
Fonte: American Society for Cell Biology Publicador: American Society for Cell Biology
Tipo: Artigo de Revista Científica
Publicado em //2008 EN
Relevância na Pesquisa
45.52%
Research based laboratory courses have been shown to stimulate student interest in science and to improve scientific skills. We describe here a project developed for a semester-long research-based laboratory course that accompanies a genetics lecture course. The project was designed to allow students to become familiar with the use of bioinformatics tools and molecular biology and genetic approaches while carrying out original research. Students were required to present their hypotheses, experiments, and results in a comprehensive lab report. The lab project concerned the yeast casein kinase 1 (CK1) protein kinase Yck2. CK1 protein kinases are present in all organisms and are well conserved in primary structure. These enzymes display sequence features that differ from other protein kinase subfamilies. Students identified such sequences within the CK1 subfamily, chose a sequence to analyze, used available structural data to determine possible functions for their sequences, and designed mutations within the sequences. After generating the mutant alleles, these were expressed in yeast and tested for function by using two growth assays. The student response to the project was positive, both in terms of knowledge and skills increases and interest in research...

Directing Diarrhoeal Disease Research towards Disease-burden Reduction

Kosek, Margaret; Lanata, Claudio F.; Black, Robert E.; Walker, Damian G.; Snyder, John D.; Salam, Mohammed Abdus; Mahalanabis, Dilip; Fontaine, Olivier; Bhutta, Zulfiqar A.; Bhatnagar, Shinjini; Rudan, Igor
Fonte: International Centre for Diarrhoeal Disease Research, Bangladesh Publicador: International Centre for Diarrhoeal Disease Research, Bangladesh
Tipo: Artigo de Revista Científica
Publicado em /06/2009 EN
Relevância na Pesquisa
45.47%
Despite gains in controlling mortality relating to diarrhoeal disease, the burden of disease remains unacceptably high. To refocus health research to target disease-burden reduction as the goal of research in child health, the Child Health and Nutrition Research Initiative developed a systematic strategy to rank health research options. This priority-setting exercise included listing of 46 competitive research options in diarrhoeal disease and their critical and quantitative appraisal by 10 experts based on five criteria for research that reflect the ability of the research to be translated into interventions and achieved disease-burden reduction. These criteria included the answerability of the research questions; the efficacy and effectiveness of the intervention resulting from the research; the maximal potential for disease-burden reduction of the interventions derived from the research; the affordability, deliverability, and sustainability of the intervention supported by the research; and the overall effect of the research-derived intervention on equity. Experts scored each research option independently to delineate the best investments for diarrhoeal disease control in the developing world to reduce the burden of disease by 2015. Priority scores obtained for health policy and systems research obtained eight of the top 10 rankings in overall scores...

Adjustment and Characterization of an Original Model of Chronic Ischemic Heart Failure in Pig

Barandon, Laurent; Calderon, Joachim; Réant, Patricia; Caillaud, Dominique; Lafitte, Stéphane; Roques, Xavier; Couffinhal, Thierry; Dos Santos, Pierre
Fonte: SAGE-Hindawi Access to Research Publicador: SAGE-Hindawi Access to Research
Tipo: Artigo de Revista Científica
Publicado em 07/09/2010 EN
Relevância na Pesquisa
45.48%
We present and characterize an original experimental model to create a chronic ischemic heart failure in pig. Two ameroid constrictors were placed around the LAD and the circumflex artery. Two months after surgery, pigs presented a poor LV function associated with a severe mitral valve insufficiency. Echocardiography analysis showed substantial anomalies in radial and circumferential deformations, both on the anterior and lateral surface of the heart. These anomalies in function were coupled with anomalies of perfusion observed in echocardiography after injection of contrast medium. No demonstration of myocardial infarction was observed with histological analysis. Our findings suggest that we were able to create and to stabilize a chronic ischemic heart failure model in the pig. This model represents a useful tool for the development of new medical or surgical treatment in this field.

Replicative Nature of Indian Research, Essence of Scientific Temper, and Future of Scientific Progress*

Singh, Ajai R.; Singh, Shakuntala A.
Fonte: Medknow Publications & Media Pvt Ltd Publicador: Medknow Publications & Media Pvt Ltd
Tipo: Artigo de Revista Científica
Publicado em //2004 EN
Relevância na Pesquisa
45.5%
A lot of Indian research is replicative in nature. This is because originality is at a premium here and mediocrity is in great demand. But replication has its merit as well because it helps in corroboration. And that is the bedrock on which many a fancied scientific hypothesis or theory stands, or falls. However, to go from replicative to original research will involve a massive effort to restructure the Indian psyche and an all round effort from numerous quarters.

Publication of Original Research in Urologic Journals – A Neglected Orphan?

Mani, Jens; Makarević, Jasmina; Juengel, Eva; Ackermann, Hanns; Nelson, Karen; Haferkamp, Axel; Blaheta, Roman A.
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 19/12/2012 EN
Relevância na Pesquisa
45.62%
The pathophysiologic mechanisms behind urologic disease are increasingly being elucidated. The object of this investigation was to evaluate the publication policies of urologic journals during a period of progressively better understanding and management of urologic disease. Based on the ISI Web of Knowledge Journal Citation Reports and the PubMed database, the number and percentage of original experimental, original clinical, review or commentarial articles published between 2002–2010 in six leading urologic journals were analyzed. “British Journal of Urology International”, “European Urology”, “Urologic Oncology-Seminars and Original Investigations” (“Urologic Oncology”), “Urology”, “The Journal of Urology”, and “World Journal of Urology” were chosen, because these journals publish articles in all four categories. The publication policies of the six journals were very heterogeneous during the time period from 2002 to 2010. The percentage of original experimental and original clinical articles, related to all categories, remained the same in “British Journal of Urology International”, “Urologic Oncology”, “Urology” and “The Journal of Urology”. The percentage of experimental reports in “World Journal of Urology” between 2002–2010 significantly increased from 10 to 20%. A distinct elevation in the percentage of commentarial articles accompanied by a reduction of clinical articles became evident in “European Urology” which significantly correlated with a large increase in the journal’s impact factor. No clearly superior policy could be identified with regard to a general increase in the impact factors from all the journals. The publication policy of urologic journals does not expressly reflect the increase in scientific knowledge...

A pilot study: research poster presentations as an educational tool for undergraduate epidemiology students

Deonandan, Raywat; Gomes, James; Lavigne, Eric; Dinh, Thy; Blanchard, Robert
Fonte: Dove Medical Press Publicador: Dove Medical Press
Tipo: Artigo de Revista Científica
Publicado em 23/09/2013 EN
Relevância na Pesquisa
55.52%
Students in a fourth year epidemiology course were surveyed after participating in a formal Science Research Day in which they presented original research, in poster form, to be judged by scientists from the community. Of 276 participating students, 80 (29%) responded to the study survey. As a result, 19% of respondents were more likely to pursue a career in science, and 27.5% were more likely to pursue a career in epidemiology. Only one respondent reported being less likely to pursue a science career, while seven were less likely to pursue epidemiology. A majority of respondents felt that the poster experience was on par with, or superior to, a comparable research paper, in terms of both educational appeal and enjoyment. Mandatory, formal poster presentations are an innovative format for teaching advanced health sciences, and may more accurately reflect the realities of a science career than do more traditional educational formats.

A Framework for Building Research Partnerships with First Nations Communities

Bharadwaj, Lalita
Fonte: Libertas Academica Publicador: Libertas Academica
Tipo: Artigo de Revista Científica
Publicado em 08/05/2014 EN
Relevância na Pesquisa
45.47%
Solutions to complex health and environmental issues experienced by First Nations communities in Canada require the adoption of collaborative modes of research. The traditional “helicopter” approach to research applied in communities has led to disenchantment on the part of First Nations people and has impeded their willingness to participate in research. University researchers have tended to develop projects without community input and to adopt short term approaches to the entire process, perhaps a reflection of granting and publication cycles and other realities of academia. Researchers often enter communities, collect data without respect for local culture, and then exit, having had little or no community interaction or consideration of how results generated could benefit communities or lead to sustainable solutions. Community-based participatory research (CBPR) has emerged as an alternative to the helicopter approach and is promoted here as a method to research that will meet the objectives of both First Nations and research communities. CBPR is a collaborative approach that equitably involves all partners in the research process. Although the benefits of CBPR have been recognized by segments of the University research community...

Prostacyclin mediates endothelial COX-2-dependent neuroprotective effects during excitotoxic brain injury

An, Ying; Belevych, Natalya; Wang, Yufen; Zhang, Hao; Nasse, Jason S; Herschman, Harvey; Chen, Qun; Tarr, Andrew; Liu, Xiaoyu; Quan, Ning
Fonte: Original Research Publicador: Original Research
Tipo: Artigo de Revista Científica
Publicado em 21/05/2014 EN
Relevância na Pesquisa
45.48%
In a previous study, we found that intracerebral administration of excitotoxin (RS)-(tetrazole-5yl) glycine caused increased neural damage in the brain in an endothelial COX-2 deleted mouse line (Tie2Cre COX-2flox/flox). In this study, we investigated whether prostacyclin might mediate this endothelial COX-2-dependent neuroprotection. Administration of excitotoxin into the striatum induced the production of prostacyclin (PGI2) in wild type, but not in endothelial COX-2 deleted mice. Inhibition of PGI2 synthase exacerbated brain lesions induced by the excitotoxin in wild type, but not in endothelial COX-2 deleted mice. Administration of a PGI2 agonist reduced neural damage in both wild type and endothelial COX-2 deleted mice. Increased PGI2 synthase expression was found in infiltrating neutrophils. In an ex vivo assay, PGI2 reduced the excitotoxin-induced calcium influx into neurons, suggesting a cellular mechanism for PGI2 mediated neuroprotection. These results reveal that PGI2 mediates endothelial COX-2 dependent neuroprotection.

Host switching in a generalist parasitoid: contrasting transient and transgenerational costs associated with novel and original host species

Jones, Thomas S; Bilton, Adam R; Mak, Lorraine; Sait, Steven M
Fonte: BlackWell Publishing Ltd Publicador: BlackWell Publishing Ltd
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
45.53%
Parasitoids face challenges by switching between host species that influence survival and fitness, determine their role in structuring communities, influence species invasions, and affect their importance as biocontrol agents. In the generalist parasitoid, Venturia canescens (Gravenhorst) (Hymenoptera: Ichneumonidae), we investigated the costs in encapsulation, survival, and body size on juveniles when adult parasitoids switched from their original host, Plodia interpunctella (Hübner) (Lepidotera, Pyralidae) to a novel host, Ephestia kuehniella (Zeller) (Lepidoptera, Pyralidae), over multiple generations. Switching had an initial survival cost for juvenile parasitoids in the novel host, but increased survival occurred within two generations. Conversely, mortality in the original host increased. Body size, a proxy for fecundity, also increased with the number of generations in the novel host species, reflecting adaptation or maternal effects due to the larger size of the novel host, and therefore greater resources available to the developing parasitoid. Switching to a novel host appears to have initial costs for a parasitoid, even when the novel host may be better quality, but the costs rapidly diminish. We predict that the net cost of switching to a novel host for parasitoids will be complex and will depend on the initial reduction in fitness from parasitizing a novel host versus local adaptations against parasitoids in the original host.

Trends in the Frequency of Original Research in Acne Vulgaris, Rosacea, Dermatitis, Psoriasis, Skin Cancer, and Skin Infections, 1970–2010

Choi, Young M; Wu, Jashin J
Fonte: The Permanente Journal Publicador: The Permanente Journal
Tipo: Artigo de Revista Científica
Publicado em //2015 EN
Relevância na Pesquisa
65.58%
A retrospective review of the Journal of the American Academy of Dermatology and the Archives of Dermatology was performed using the MEDLINE database for all original research articles published between 1970 and 2010. The frequency of research into acne vulgaris and rosacea decreased from 24% to 5.1%, psoriasis research increased from 17.6% to 26.5% (most likely because of the discovery of biologics), and skin cancer research increased from 4% to 48% (paralleling the increasing incidence of skin cancer).

Correction: emergency surgeon: “last of the mohicans” 2014–2016 editorial policy WSES-WJES: position papers, guidelines, courses, books and original research; from WJES impact factor to WSES congress impact factor

Catena, Fausto; Moore, Frederick; Ansalon, Luca; Leppaniemi, Ari; Sartelli, Massimo; Peitzmann, Andrew B.
Fonte: BioMed Central (World Journal of Emergency Surgery); BioMed Central (World Journal of Emergency Surgery) Publicador: BioMed Central (World Journal of Emergency Surgery); BioMed Central (World Journal of Emergency Surgery)
Tipo: mixed material
Publicado em //2014 ENGLISH
Relevância na Pesquisa
45.48%
Catena et al. World Journal of Emergency Surgery 2014, 9:25 http://www.wjes.org/content/9/1/25; Pages ; doi:10.1186/1749-7922-9-25 Cite this article as: Catena et al.: Correction: emergency surgeon: “last of the mohicans” 2014–2016 editorial policy WSES-WJES: position papers, guidelines, courses, books and original research; from WJES impact factor to WSES congress impact factor. World Journal of Emergency Surgery 2014 9:25.

Analysis of the structure of original research papers: an aid to writing original papers for publication.

Skelton, J
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /10/1994 EN
Relevância na Pesquisa
55.59%
BACKGROUND. An increasing number of people involved in medicine are under pressure to publish research, but there is little understanding of how to describe structured writing. AIM. This paper aims to describe the structure of original research papers published in the British Journal of General Practice with a view to providing insight into the nature of such analyses, and particularly to help researchers and trainers to write and teach writing more successfully. METHOD. A sample of 50 original papers published in the Journal between January 1989 and March 1993 were examined. The papers were subjected to a form of 'move structure analysis', a technique used in applied linguistics; move structure analysis assigns a tentative function to a piece of text, and identifies words/phrases associated with it. To be recognized, moves thus identified had to occur in the same section of the paper in 65% of the corpus, and/or appear in the same order relative to other moves in 50%. RESULTS. Fifteen moves were identified, four in the introduction, three in the method, and four each in the results and discussion. These moves functioned, for example in the discussion, to state limitations and defend successes; describe achievements; contextualize procedures and findings; and offer recommendations. Frequency scores ranged from 66% to 100%...

Quality of abstracts of original research articles in CMAJ in 1989.

Narine, L; Yee, D S; Einarson, T R; Ilersich, A L
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em 15/02/1991 EN
Relevância na Pesquisa
55.57%
PURPOSE: To evaluate the quality of abstracts of original research articles. DESIGN: Blind, criterion-based survey. SAMPLE: Systematic sample of 33 abstracts of original research articles published in CMAJ in 1989. MEASUREMENT: The quality of abstracts was measured against a checklist of evaluation criteria, which were divided into eight categories. A score for each abstract was obtained by dividing the number of criteria present by the number applicable. The overall mean score was also determined. RESULTS: The overall mean score of abstract quality was 0.63 (standard deviation 0.13) out of 1. Of the abstracts reporting study design 56% did not include specific technical descriptors. About 52% did not explicitly describe the study variables. In describing subject selection 79% failed to use specific technical terms. Of the abstracts reporting results 66% did not provide appropriate supporting data. Of those that gave conclusions 86% did not address study limitations and 93% made no recommendations for future study. CONCLUSION: Most of the abstracts provided some information pertaining to each evaluation criterion but did not provide detail sufficient to enhance the reader's understanding of the article. On the basis of the study sample the abstracts need improvement in description of research design...

A review of cardiopulmonary research in brazilian medical journals: clinical, surgical and epidemiological data

Serrano, Carlos; Silva, Mauricio Rocha e
Fonte: Universidade de São Paulo. Faculdade de Medicina Publicador: Universidade de São Paulo. Faculdade de Medicina
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; Formato: application/pdf
Publicado em 01/01/2010 ENG
Relevância na Pesquisa
45.51%
Research in the field of cardiopulmonary disease in Brazil has been very active in recent decades. The combination of PUBMED, SCieLO, open access and online searching has provided a significant increase in the visibility of Brazilian journals. This newly acquired international visibility has in turn resulted in the appearance of more original research reports in the Brazilian scientific press. This review is intended to highlight part of this work for the benefit of the readers of "Clinics." We searched through PUBMED for noteworthy articles published in Brazilian medical journals included in the Journal of Citation Reports of the Institute of Scientific Information to better expose them to our readership. The following journals were examined: "Arquivos Brasileiros de Cardiologia," "Arquivos Brasileiros de Endocrinologia e Metabologia," "Brazilian Journal of Medical and Biological Reviews," "Jornal Brasileiro de Pneumologia," "Jornal de Pediatria," "Revista Brasileira de Cirurgia Cardiovascular," "Revista da Associação Médica Brasileira," Revista da Escola de Enfermagem U.S.P." and "São Paulo Medical Journal." These journals publish original investigations in the field of cardiopulmonary disease. The search produced 71 references...