Roche genetics education program
F. Hoffmann-La Roche & Co.
http://www.roche.com/home/diseases/dis_can.htm

National Center for Biotechnology Information (U.S.)
http://www.ncbi.nlm.nih.gov/disease/

Genetics home reference
Lister Hill National Center for Biomedical Communications.
http://ghr.nlm.nih.gov/ghr/conditionsByName