1 *Department of Neurological Surgery, ‡Department of Epidemiology and Biostatistics, and §Department of Neurology, University of California, San Francisco, San Francisco, California.
EORTC/NCIC, European Organisation for Research and Treatment of Cancer/National Cancer Institute of CanadaGBM, glioblastomaOS, overall survivalPFS, progression-free survivalSEER, Surveillance, Epidemiology, and End ResultsTMZ, temozolomide.