title: Power and sample size.
authors.affiliation: Brown University School of Medicine, Women and Infants Hospital, Providence, Rhode Island, USA. jhogan@stat.brown.edu
authors.forename: J W
authors.initials: JW
authors.lastname: Hogan
authors.forename: J F
authors.initials: JF
authors.lastname: Peipert
mesh_terms: D003627:Data Interpretation, Statistical; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D018401:Sample Size