Cynthia'a dilemma.
O'Brien
Charles P
CP
University of Pennsylvania
D002986:Clinical Trials as Topic / Q000941:ethics*; D032984:Ethics, Research; D003932:Heroin / Q000627:therapeutic use*; D006556:Heroin Dependence / Q000188:drug therapy*; D006801:Humans; D008691:Methadone / Q000627:therapeutic use
D003932:Heroin; D008691:Methadone