Long-term follow-up of three controlled trials comparing cyclosporine versus methotrexate for graft-versus-host disease prevention in patients given marrow grafts for leukemia. - Storb,R.; Martin,P.; Deeg,H.J.; Sanders,J.E.; Pepe,M.; Singer,J.; Anasetti,C.; Stewart,P.; Appelbaum,F.R.; Sullivan,K.M,. (Blood, 1992)