Entonox-isoflurane for analgesia in labour.
Woodward
W M
WM
D016362:Analgesia, Obstetrical; D003696:Delivery Rooms; D004338:Drug Combinations; D005260:Female; D006801:Humans; D007530:Isoflurane; D009609:Nitrous Oxide; D016273:Occupational Exposure; D010100:Oxygen; D011247:Pregnancy
D004338:Drug Combinations; C001147:Entonox; D007530:Isoflurane; D009609:Nitrous Oxide; D010100:Oxygen