title: A step-by-step approach to the evaluation of clinical studies with therapeutic or preventive objectives.
authors.affiliation: Department of Medicine, Hartford Hospital, University of Connecticut Internal Medicine Residency, USA.
authors.forename: Cunegundo M
authors.initials: CM
authors.lastname: Vergara
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
mesh_terms: D002986:Clinical Trials as Topic / Q000592:standards*; D003695:Delivery of Health Care; D019317:Evidence-Based Medicine / Q000592:standards*; D006801:Humans; D016032:Randomized Controlled Trials as Topic / Q000592:standards; D015203:Reproducibility of Results; D012107:Research Design