Unrelated cord blood transplantation for childhood acute myeloid leukemia: a Eurocord Group analysis. - Michel,G.; Rocha,V.; Chevret,S.; Arcese,W.; Chan,K.W.; Filipovich,A.; Takahashi,T.A.; Vowels,M.; Ortega,J.; Bordigoni,P.; Shaw,P.J.; Yaniv,I.; et al. (Blood, 2003)