1. Tumour production in glandular stomach of rat by N-methyl-N′-nitro-N-nitrosoguanidine;Sugimura;Nature,1967
2. Histological findings of gastric tumors induced by N-methyl-N′-nitro-N-nitrosoguanidine in rats;Takayama;Gann,1967
3. Production of adenocarcinomas in glandular stomach of experimental animals by N-methyl-N′-nitro-N-nitrosoguanidine;Sugimura;Gann,1969
4. Tumor production in the glandular stomach and alimentary tract of the rat by N-methyl-N′-nitro-N-nitrosoguanidine;Sugimura;Cancer Res.,1970
5. Tumor induction in the glandular stomach of rats after oral administration of a single or a few doses of N-methyl-N′-nitro-N-nitrosoguanidine during the newborn period;Sumi;Gann,1978