Unrelated umbilical cord blood transplant for adult acute lymphoblastic leukemia in first and second complete remission: a comparison with allografts from adult unrelated donors Autor David I. Marks, Kwang Ahn Woo, Xiaobo Zhong, Frederick R. Appelbaum, Veronika Bachanova, Juliet N. Barker, Claudio G. Brunstein, John Gibson, Partow Kebriaei, Hillard M. Lazarus, Richard Olsson, Miguel-Angel Perales, Joseph Pidala, Bipin Savani, Vanderson Rocha, Mary Eapen