Obstetric anesthesia using nitrous oxide-oxygen-trichlorethylene.
D000773:Anesthesia, Obstetrical; D009609:Nitrous Oxide; D010100:Oxygen; D014241:Trichloroethylene
D014241:Trichloroethylene; D009609:Nitrous Oxide; D010100:Oxygen
TRICHLOROETHYLENE