title: Morphine: an old drug reviewed and reexamined.
authors.forename: M A
authors.initials: MA
authors.lastname: Gray
mesh_terms: D004335:Drug and Narcotic Control / Q000266:history / Q000331:legislation & jurisprudence; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009020:Morphine / Q000266:history* / Q000494:pharmacology / Q000627:therapeutic use; D014481:United States
chemical_list: D009020:Morphine