title: Clinical trials registration.
authors.forename: Frank W
authors.initials: FW
authors.lastname: Rockhold
authors.forename: Ronald L
authors.initials: RL
authors.lastname: Krall
mesh_terms: D002985:Clinical Protocols / Q000592:standards*; D006801:Humans; D016032:Randomized Controlled Trials as Topic / Q000592:standards*; D012042:Registries / Q000592:standards*