title: Making changes in clinical trials.
authors.affiliation: Cardiovascular Medicine, Henry Ford Health System, 2700 W. Grand Blvd. Detroit, MI 48195, USA. weaver1@hfhs.org
authors.forename: W D
authors.initials: WD
authors.lastname: Weaver
authors.forename: S
authors.initials: S
authors.lastname: Greenberg
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods / Q000592:standards / Q000639:trends; D006331:Heart Diseases / Q000628:therapy; D006801:Humans; D017410:Practice Guidelines as Topic; D017751:Safety Management / Q000379:methods