1. Sugimura T, Fujimura S. Tumour production in glandular stomach of rat by N-methyl-N′-nitro-N-nitrosoguanidine. Nature 1967; 216: 943–944.
2. Sugimura T, Fujimura S, Baba T. Tumor production in the glandular stomach and alimentary tract of the rat by N-methyl-N′-nitro-N-nitrosoguanidine. Cancer Res 1970; 30: 455–465.
3. Sugimura T, Fujimura S, Kogure K, Baba T, Saito T, Nagao M, Hosoi H, Shimosato Y, Yokoshima T. Production of adenocarcinomas in glandular stomach of experimental animals by N-methyl-N′-nitro-N-nitrosoguanidine. Gann Monograph 1969; 8: 157–196.
4. Lee SO. Studies on the influence of diets and lipotropic substances upon the various organs and metabolic changes in rabbits on long term feeding with red pepper. Korean J Int Med 1963; 6: 471.
5. Hirayama T. The epidemiology of cancer of the stomach in Japan; with special reference to the role of diet. Gann Monograph 1968; 3: 15–21.