Trilene for obstetrical analgesia.
D016362:Analgesia, Obstetrical; D000758:Anesthesia; D000769:Anesthesia, Inhalation; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D011247:Pregnancy; D014241:Trichloroethylene
D014241:Trichloroethylene
ANESTHESIA, INHALATION; LABOR; TRICHLOROETHYLENE