title: Clinical research methodology I: introduction to randomized trials.
authors.affiliation: Department of Surgery, The University of Texas Health Science Center at Houston, Houston, TX, USA. lillian.s.kao@uth.tmc.edu
authors.forename: Lillian S
authors.initials: LS
authors.lastname: Kao
authors.forename: Jon E
authors.initials: JE
authors.lastname: Tyson
authors.forename: Martin L
authors.initials: ML
authors.lastname: Blakely
authors.forename: Kevin P
authors.initials: KP
authors.lastname: Lally
mesh_terms: D035843:Biomedical Research / Q000458:organization & administration*; D016021:Epidemiologic Studies; D013502:General Surgery; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D015203:Reproducibility of Results; D012107:Research Design