Survival of patients after HCT stratified by disease category and treatment era. (A) Overall survival of ALL patients in earlier cohort Total Therapy 13/Total Therapy 14 versus recent cohort Total Therapy 15 (top panel), and of AML patients in earlier cohort AML97 versus recent cohort AML02 (bottom panel). (B) Leukemia-free survival of patients whose leukemia was in remission at the time of HCT.