title: Lumpers versus splitters.
authors.forename: J N
authors.initials: JN
authors.lastname: Cohn
mesh_terms: D002317:Cardiovascular Agents / Q000627:therapeutic use*; D002318:Cardiovascular Diseases / Q000188:drug therapy*; D002986:Clinical Trials as Topic / Q000379:methods* / Q000592:standards; D016757:Death, Sudden, Cardiac / Q000517:prevention & control; D006801:Humans
chemical_list: D002317:Cardiovascular Agents