Comparison of allogeneic transplant versus chemotherapy for relapsed childhood acute lymphoblastic leukaemia in the MRC UKALL R1 trial. MRC Childhood Leukaemia Working Party. - Harrison,G.; Richards,S.; Lawson,S.; Darbyshire,P.; Pinkerton,R.; Stevens,R.; Oakhill,A.; Eden,O.B. (Ann Oncol, 2000)