Outcome of haematopoietic stem cell transplantation for paediatric acute lymphoblastic leukaemia in third complete remission: a vital role for graft-versus-host-disease/ graft-versus-leukaemia effect in survival. - Gassas, Adam; Ishaqi, M Kashif; Afzal, Samina; Dupuis, Annie; Doyle, John (British Journal of Haematology, 2008)