Oriol A, Vives S, Hernández-Rivas J-M, Tormo M, Heras I, Rivas C, Bethencourt C, Moscardó F, Bueno J, Grande C, del Potro E, Guardia R, Brunet S, Bergua J, Bernal T, Moreno M-J, Calvo C, Bastida P, Feliu E, Ribera J-M. Outcome after relapse of acute lymphoblastic leukemia in adult patients included in four consecutive risk-adapted trials by the PETHEMA Study Group. Haematologica 2010; 95(4):589-596; https://doi.org/10.3324/haematol.2009.014274.