Data
The following data were collected: Sex, age at diagnosis, presenting symptoms and duration, ethnicity, primary tumor site, histology, serum/cerebrospinal fluid (CSF) tumor markers including beta human chorionic gonadotropin (bHCG) and alfa fetoprotein (AFP), extent of surgical resection, radiotherapy regimen, chemotherapy regimen, treatment sequence, response to treatment, time to progression, relapse timing, relapse treatment, duration of survival, cause of death and treatment-related adverse events. Treatment-related toxicities were classified according to the Common Terminology Criteria for Adverse Events Version 5.0. Elevated bHCG and AFP cutoffs were determined by each institution.