Critical appraisal of clinical studies: practical tables.
Carneiro
António Vaz
AV
Centro se Estudos de Medicina Baseada na Evidência, Faculdade de Medicina de Lisboa, Lisboa, Portugal. avc@fm.ul.pt
D002986:Clinical Trials as Topic; D019317:Evidence-Based Medicine / Q000379:methods* / Q000592:standards; D006801:Humans; D011795:Surveys and Questionnaires