title: Pragmatic and mechanistic trials.
authors.affiliation: Duke Clinical Research Institute, Durham, NC 27705, USA.
authors.forename: R M
authors.initials: RM
authors.lastname: Califf
authors.forename: L H
authors.initials: LH
authors.lastname: Woodlief
mesh_terms: D000806:Angiotensin-Converting Enzyme Inhibitors / Q000627:therapeutic use; D002318:Cardiovascular Diseases / Q000628:therapy*; D002986:Clinical Trials as Topic; D018166:Health Care Reform; D006295:Health Resources; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D014481:United States
chemical_list: D000806:Angiotensin-Converting Enzyme Inhibitors