http://www.ncbi.nlm.nih.gov/pubmed/?term=turmeric+cancer
http://www.ncbi.nlm.nih.gov/pubmed/?term=piperlongumine+canc...
http://www.ncbi.nlm.nih.gov/pubmed/?term=bromelain+cancer
http://www.ncbi.nlm.nih.gov/pubmed/?term=frankincense+cancer