[Effect of bile on the development of tumors of the stomach and small intestine induced in rats by N-methyl-N-nitro-N-nitrosoguanidine].

The study of the influence of long-term injection of whole bile into rat's stomach on N-methyl-N-nitro-N-nitrosoguanidine-induced tumors revealed an increased frequency of stomach malignancies matched by a lower frequency of those in the small intestine as well as slower rates of growth of gastrointestinal tumors.