Pain relief in labour: old drugs, new route.
D000767:Anesthesia, Epidural; D000772:Anesthesia, Local / Q000379:methods*; D000773:Anesthesia, Obstetrical / Q000379:methods*; D005260:Female; D006801:Humans; D009294:Narcotics / Q000008:administration & dosage* / Q000009:adverse effects; D011247:Pregnancy; D011537:Pruritus / Q000139:chemically induced
D009294:Narcotics