Natural treatments for CLL (leukemia)
http://www.webmd.com/cancer/lymphoma/news/20081231/grape-seed-extract-may-fight-leukemia
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2646173/

The Importance of Drinking Rather Than Smoking Cannabis... 

http://www.whydontyoutrythis.com/2013/04/the-importance-of-drinking-rather-than-smoking-cannabis.html

Vitamin Supplement Linked to Reduction in Skin Cancer Risk
http://consumer.healthday.com/cancer-information-5/mis-cancer-news-102/vitamin-supplement-may-help-prevent-skin-cancer-699398.html

Multivitamins may cut cancer risk in men » Abilene Reporter-News
http://www.reporternews.com/news/2012/oct/30/multivitamins-may-cut-cancer-risk-in-men/AN

Multivitamins May Lower Cancer Risk in Men
http://www.medscape.com/viewarticle/772811?src=mpnews

Multivitamins protect older women from breast cancer
http://www.einstein.yu.edu/news/releases/940/multivitamins-may-protect-older-women-with-invasive-breast-cancer/

Multivitamins decrease Breast cancer
http://www.sciencedaily.com/releases/2013/10/131009105751.htm

Omega-3 fish oil decreases Breast Cancer
http://www.prnewswire.com/news-releases/omega-3-fish-oil-inhibits-growth-of-breast-cancer-tumors-by-30-197415711.html

Vitamin A Deficiency - Weston A Price Foundation
http://www.westonaprice.org/notes-from-yesteryear/vitamin-a-deficiency

Prostate cancer treatment 
http://www.medicalnewstoday.com/articles/261688.php