Comment on

• A comparison of conservative and aggressive transfusion regimens in the perioperative management of sickle cell disease. The Preoperative Transfusion in Sickle Cell Disease Study Group.

  Vichinsky EP, Haberkern CM, Neumayr L, Earles AN, Black D, Koshy M, Pegelow C, Abboud M, Ohene-Frempong K, Iyer RV. Vichinsky EP, et al. N Engl J Med. 1995 Jul 27;333(4):206-13. doi: 10.1056/NEJM199507273330402. N Engl J Med. 1995. PMID: 7791837 Clinical Trial.