Swiss Institute for Applied Cancer Research (SIAK)
http://www.sakk.ch/_english/frameset.html
American Cancer Society
Statistics, information about prevention and treatment, and services.
http://www.cancer.org/
American Society of Hematology
http://www.hematology.org/
American Society of Clinical Oncology (ASCO)
http://www.asco.org/
Union Internationale Contre de Cancer (UICC)
http://www.uicc.ch/
World Health Organization (WHO)
http://www.who.ch/