Links

National Cancer Institute at the National Institutes of Health U.S.A.

http://www.cancer.gov/types/colorectal

American Cancer Society

http://www.cancer.org/

American Society of Clinical Oncology

http://www.cancer.net/cancer-types/colorectal-cancer

Global Colon Cancer Organization

http://www.globalcca.org/

International Agency for Research on Cancer (IARC)

http://www.iarc.fr/

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