Obstetric analgesia. A consideration of labor pain and a patient-controlled technique for its relief with meperidine.
D000773:Anesthesia, Obstetrical / Q000295:instrumentation; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D008614:Meperidine; D008722:Methods; D010146:Pain; D011247:Pregnancy
D008614:Meperidine