Observational studies: why are they so important?

Mariani, Alessandro Wasum; Pego-Fernandes, Paulo Manuel

Observational studies: why are they so important? / Estudos observacionais: por que sao tao importantes?

Mariani, Alessandro Wasum; Pego-Fernandes, Paulo Manuel.

Mariani, Alessandro Wasum; Universidade de Sao Paulo. Faculdade de Medicina. Hospital das Clinicas. Instituto do Coracao (InCor). Sao Paulo. BR
Pego-Fernandes, Paulo Manuel; Universidade de Sao Paulo. Faculdade de Medicina. Hospital das Clinicas. Instituto do Coracao (InCor). Sao Paulo. BR

São Paulo med. j ; 132(1): 1-2, 2014.

Article in English | LILACS | ID: lil-699307

Subject(s)

Humans; Observational Studies as Topic/standards; Randomized Controlled Trials as Topic/standards; Research Design/standards; Selection Bias

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Full text: Available Index: LILACS (Americas) Main subject: Randomized Controlled Trials as Topic / Observational Studies as Topic Type of study: Controlled clinical trial / Observational study Limits: Humans Language: English Journal: São Paulo med. j Journal subject: Cirurgia Geral / Cincia / Ginecologia / Medicine / Medicina Interna / Obstetr¡cia / Pediatria / Sa£de Mental / Sa£de P£blica Year: 2014 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade de Sao Paulo/BR

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