1. Preoperative hemoglobin requirements;Zauder;Anesth Clin North Am,1990
2. The blood changes induced by the administration of ether as an anesthetic;DaCosta;Ann Surg,1901
3. Anesthesia in cases of poor surgical risk: some suggestions for decreasing the risk;Adams;Surg Gynecol Obstet,1942
4. Problems of oxygenation and oxygen transport during hemorrhage;Nunn;Anesthesia,1964
5. Misuse of blood transfusion;Crosby;Blood,1958