A comparison of cyclophosphamide and total body irradiation with etoposide and total body irradiation as conditioning regimens for patients undergoing sibling allografting for acute lymphoblastic leukemia in first or second complete remission

David I. Marks, Stephen J. Forman, Karl G. Blume, Waleska S. Pérez, Daniel J. Weisdorf, Armand Keating, Robert Peter Gale, Mitchell S. Cairo, Edward A. Copelan, John T. Horan, Hillard M. Lazarus, Mark R. Litzow, Philip L. McCarthy, Kirk R. Schultz, David D. Smith, Michael E. Trigg, Mei Jie Zhang, Mary M. Horowitz