Second transplants for leukaemic relapse after bone marrow transplantation: high early mortality but favourable effect of chronic GVHD on continued remission. A report by the EBMT Leukaemia Working Party. - Barrett,A.J.; Locatelli,F.; Treleaven,J.G.; Gratwohl,A.; Szydlo,R.; Zwaan,F.E. (Br J Haematol, 1991)