1. Cancer Facts and Figures 2008;American Cancer Society,2008
2. Neoplasms of the central nervous system;Levin,2001
3. Trends in SEER incidence and U.S. mortality using the joinpoint regression program 1975-2000 with up to three joinpoints by race and sex. En: Ries LAG, Eisner MP, Kosary CL, et al, editors. Section 3: Brain and Other Nervous System Cancer (Invasive). SEER Cancer Statistics Review, 1975-2000. Bethesda, Md: National Cancer Institute; 2003.
4. Descriptive epidemiology of primary tumors of the spinal cord and spinal meninges in Los Angeles County, 1972-1985;Preston-Martin;Neuroepidemiology,1990
5. CBTRUS (2005). Statistical Report: Brain Tumors in the United States, 1998-2002.