Long-term results of four consecutive trials in childhood ALL performed by the ALL-BFM study group from 1981 to 1995. Berlin-Frankfurt-Munster. - Schrappe,M.; Reiter,A.; Zimmermann,M.; Harbott,J.; Ludwig,W.D.; Henze,G.; Gadner,H.; Odenwald,E.; Riehm,H. (Leukemia, 2000)