Vitamin C

http://www.ncbi.nlm.nih.gov/pubmed/22963460

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1405876/

http://www.nlm.nih.gov/medlineplus/news/fullstory_144439.html

3 Clinical Trial - with high dose vitamin C with chemo

http://clinicaltrials.gov/ct2/show/NCT01049880

http://www.clinicaltrials.gov/ct2/show/record/NCT01050621

http://clinicaltrials.gov/show/NCT00954525

http://www.ncbi.nlm.nih.gov/pubmed/14668266