Fig. 4.
Treatment era.
(A) Kaplan-Meier estimates of EFS for a cohort of 3545 children with ALL treated between 1983 and 1989 (early era) according to racial and ethnic distribution. (B) Kaplan-Meier estimates of EFS for a cohort of 4902 children with ALL treated between 1989 and 1995 (recent era) according to racial and ethnic distribution.