title: Clinical trials: a sponsor's perspective: overview.
authors.affiliation: Thoratec Laboratories, Pleasanton, California 94588, USA.
authors.forename: D A
authors.initials: DA
authors.lastname: Middlebrook
mesh_terms: D002986:Clinical Trials as Topic; D004864:Equipment and Supplies; D006801:Humans; D014481:United States; D014486:United States Food and Drug Administration