Sobecks RM, Daugherty CK, Hallahan DE, Laport GF, Wagner ND, Larson RA. A dose escalation study of total body irradiation followed by high-dose etoposide and allogeneic blood stem cell transplantation for the treatment of advanced hematologic malignancies. Bone Marrow Transplant. 2000 Apr; 25(8):807-13.