title: Divergent traditions in analgesic clinical trials.
authors.affiliation: Neurobiology and Anesthesiology Branch, National Institute of Dental Research, National Institutes of Health, Bethesda, MD 20892.
authors.forename: M B
authors.initials: MB
authors.lastname: Max
mesh_terms: D016058:Analgesia, Patient-Controlled; D000700:Analgesics / Q000008:administration & dosage*; D002986:Clinical Trials as Topic / Q000379:methods*; D003692:Delayed-Action Preparations; D004992:Ethics, Medical; D006801:Humans; D009020:Morphine / Q000008:administration & dosage; D012107:Research Design
chemical_list: D000700:Analgesics; D003692:Delayed-Action Preparations; D009020:Morphine