Sites used

http://ghr.nlm.nih.gov/gene/BRCA2
http://www.komenkansascity.org/understanding-breast-cancer/about-breast-cancer/fast-facts.html

http://www.cancer.org/cancer/breastcancer/detailedguide/breast-cancer-what-causes
http://www.ndsu.edu/pubweb/~mcclean/plsc431/students98/rivera.htm
http://www.cancer.gov/cancertopics/factsheet/Risk/BRCA
http://www.cancer.org/cancer/breastcancer/detailedguide/breast-cancer-treating-general-info