Relief of pain in labor.
D000700:Analgesics / Q000008:administration & dosage; D000765:Anesthesia, Conduction; D000769:Anesthesia, Inhalation / Q000451:nursing; D000773:Anesthesia, Obstetrical / Q000451:nursing*; D002584:Cervix Uteri; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D008012:Lidocaine; D008614:Meperidine / Q000008:administration & dosage; D009321:Natural Childbirth; D010146:Pain; D010353:Patient Education as Topic; D011247:Pregnancy; D011295:Prenatal Care; D014149:Tranquilizing Agents / Q000008:administration & dosage
D000700:Analgesics; D014149:Tranquilizing Agents; D008012:Lidocaine; D008614:Meperidine