1. Cardiopulmonary bypass in the fetal lamb: effects of hypothermia and perfusion rate;Hawkins;Circulation,1988
2. Fetal blood flow during hypothermic cardiopulmonary by-pass in utero;Richter;J Cardiovasc Surg,1985
3. Regional blood flows during cardiopulmonary bypass in fetal lambs: the effect of nitroprusside;Bradley;Circulation,1990
4. Role of prostaglandins in the maintenance of the placental circulation;Rankin,1978
5. Hemodynamic effects of prostaglandin ***E1 on lambs in utero;Tripp,1978