title: Clinical trial size and efficacy.
authors.forename: S R
authors.initials: SR
authors.lastname: Feldman
authors.forename: A B
authors.initials: AB
authors.lastname: Fleischer
mesh_terms: D015982:Bias; D006801:Humans; D010865:Pilot Projects; D016032:Randomized Controlled Trials as Topic / Q000706:statistics & numerical data*; D018401:Sample Size; D016896:Treatment Outcome