Upper limits of resistance of apparatus for inhalation analgesia during labour. Response of mothers to increasing apparatus resistance.
D000293:Adolescent; D000328:Adult; D000769:Anesthesia, Inhalation; D000773:Anesthesia, Obstetrical; D005260:Female; D006801:Humans; D008733:Methoxyflurane; D009119:Muscle Contraction; D009609:Nitrous Oxide; D010298:Parity; D011247:Pregnancy; D011312:Pressure; D013147:Spirometry; D014599:Uterus / Q000502:physiology; D012122:Ventilators, Mechanical
D008733:Methoxyflurane; D009609:Nitrous Oxide