Hendricks J. , Cheng R., Shelton D., Pereira C., and Bailey G. (1994). Dose-dependent carcinogenicity and frequent Ki-ras proto-oncogene activation by dietary N-nitrosodiethylamine in rainbow trout. Fund. Appl. Toxicol. 23: 53-62.
2.
Ward JM, Fox JG, Anver MR, Haines DC, George CV, Collins M. Jr, Gorelick PL, Nagashima K., Gonda MA, Gilden RV, Tully JG, Russell RJ, Benveniste RE, Paster BJ, Dewhirst FE, Donovan JC, Anderson LM, and Rice JM (1994). Chronic active hepatitis and associated liver tumors in mice caused by a persistent bacterial infection with a novel Helicobacter species. J. Natl. Cancer Inst. 86: 1222-1227.