Combined treatment with green tea catechins and sodium nitrite selectively promotes rat forestomach carcinogenesis after initiation with N-methyl-N'- nitro-N-nitrosoguanidine.

Kuroiwa Y, Ishii Y, Umemura T, Kanki K, Mitsumori K, Nishikawa A, Nakazawa H, Hirose M.

Cancer Science

98

7

949

957

10.1111/j.1349-7006.2007.00481.x.