Predictive power of pretreatment prognostic factors in children with hepatoblastoma: A report from the Children's Oncology Group

PRETEXT, COG stage, SCU histology, and AFP < 100, as assessed at diagnosis, are important determinants of survival that will allow us to better develop common international criteria for risk stratification. Common risk stratification is an essential prerequisite to establish effective cooperation across the ocean in this field of rare tumors.