Fig. 1: Overall survival and event-free survival.

A Overall survival (OS) for the whole cohort. B Event-free survival (EFS) for the whole cohort. C OS for low- or intermediate-risk patients. D EFS for low- or intermediate-risk patients. E OS for high-risk patients. F EFS for high-risk patients. G OS for patients receiving ATRA plus ATO. H EFS for patients receiving ATRA plus ATO.