The primary end point was event-freesurvival (EFS).
主要终点为无病生存期（EFS）。
2
Objective To investigate the relationship between immunophenotype and event-freesurvival (EFS) in children with acute lymphoblastic leukemia (ALL).
目的探讨儿童急性淋巴细胞白血病(all)免疫表型与无病生存期(EFS)的关系。
3
First results from a French study comparing single versus double autologous transplantation have shown a benefit in terms of event-freesurvival for the sequential approach.