9. No exclusion to this study will be based on race. The malignant glioma patient population treated at MD Anderson Cancer Center (MDACC) over the past year is as follows: American Indian or Alaskan Native - 0; Asian or Pacific Islander - <2%; Black, not of Hispanic Origin - 3%; Hispanic - 6%; White, not of Hispanic Origin - 88%; Other or Unknown - 2%; Total-100%.