title: Controlled clinical drug trials: creating a new paradigm.
authors.forename: P G
authors.initials: PG
authors.lastname: Fine
mesh_terms: D000700:Analgesics / Q000627:therapeutic use; D018849:Controlled Clinical Trials as Topic / Q000379:methods*; D006801:Humans; D018847:Opioid Peptides / Q000378:metabolism
chemical_list: D000700:Analgesics; D018847:Opioid Peptides