1. Plasma Vitamin B 6 and the Risk of Colorectal Cancer and Adenoma in Women
   Esther K. Wei et al, 2005 CrossRef
2. Nutritional Studies of Preventive Food Factors against Diseases through Functions in the Intestine
   Norihisa Kato, 2012, Journal of Japanese Society of Nutrition and Food Science CrossRef
3. Consumption of Vitamin B6 Reduces Fecal Ratio of Lithocholic Acid to Deoxycholic Acid, a Risk Factor for Colon Cancer, in Rats Fed a High-Fat Diet
   Yukako OKAZAKI et al, 2012, J Nutr Sci Vitaminol CrossRef
4. Prospective Study of Plasma Vitamin B6 and Risk of Colorectal Cancer in Men
   Jung Eun Lee et al, 2009 CrossRef