Physiological effects of partial amniotic carbon dioxide insufflation with cold, dry vs heated, humidified gas in a sheep model. - Amberg BJ; Hodges RJ; Kashyap AJ; Skinner SM; Rodgers KA; McGillick EV; Deprest JA; Hooper SB; Crossley KJ; DeKoninck PLJ (Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology, 2019)