American Association for Cancer Research (AACR)
   Source of information about advances in the causes, diagnosis, treatment, and prevention of cancer.
   http://www.aacr.org/

American Brain Tumor Association
   Provides information about brain tumors, treatment options, clinical trials, and living with a brain tumor.
   http://www.abta.org/

American Cancer Society
   Dedicated to helping persons who face cancer. Supports research, patient services, early detection, treatment and education.
   http://www.cancer.org/

California Breast Cancer Research Program
   Responsible for administering funding to eliminate breast cancer by leading innovation in research, communication, and collaboration in the California scientific and lay communities.
   http://www.cbcrp.org

Cancer Research UK
   Funding world-class research and training to improve cancer treatment and prevention, and providing authoritative cancer information and advocacy.
   http://www.cancerresearchuk.org/