title: [Research designs].
abstract: The purpose of this study is to analyze the classifications and concepts found in the literature regarding the research models on scientific studies commonly used in medical articles. This paper provides elements to facilitate the creation of a research model. It also helps the researcher to identify which is the research model of an article. This article will enable the reader of a scientific paper to have a more accurate sense of criticism of the Methods of a study.
authors.affiliation: Programa de Pós-Graduação em Cirurgia Plástica, Universidade Federal de São Paulo, Escola Paulista de Medicina, Brazil. lydia.dcir@epm.br
authors.forename: Bernardo
authors.initials: B
authors.lastname: Hochman
authors.forename: Fabio Xerfan
authors.initials: FX
authors.lastname: Nahas
authors.forename: Renato Santos de
authors.initials: RS
authors.lastname: Oliveira Filho
authors.forename: Lydia Masako
authors.initials: LM
authors.lastname: Ferreira
mesh_terms: D035843:Biomedical Research / Q000379:methods*; D004812:Epidemiologic Methods; D006801:Humans; D012107:Research Design