title: Combinations of opioids for epidural analgesia.
authors.forename: P
authors.initials: P
authors.lastname: Lee
mesh_terms: D015360:Analgesia, Epidural / Q000379:methods*; D000701:Analgesics, Opioid / Q000008:administration & dosage; D000779:Anesthetics, Local / Q000008:administration & dosage; D004334:Drug Administration Schedule; D004338:Drug Combinations; D006801:Humans
chemical_list: D000701:Analgesics, Opioid; D000779:Anesthetics, Local; D004338:Drug Combinations