Obstetric analgesia based on pethidine-antagonist mixtures.
D000698:Analgesia; D016362:Analgesia, Obstetrical; D000758:Anesthesia; D000760:Anesthesia and Analgesia; D000773:Anesthesia, Obstetrical; D008614:Meperidine; D059408:Pain Management
D008614:Meperidine
ANESTHESIA, OBSTETRICAL; MEPERIDINE/anesthesia and analgesia