Chen J. et al. 1999
Chen J., Giovannucci E.L., and Hunter D.J., 1999. MTHFR polymorphism, methyl-replete diets and the risk of colorectal carcinoma and adenoma among U.S. men and women: An example of gene-environment interactions in colorectal tumorigenesis. J.Nutr. 129: S560-S564.
