1. Danz, M., Urban, H., Schmidt, A., Ziebarth, D.: A possible short-term prediction of potential carcinogenicity of chemical compounds in vivo by means of a promoting activity test (PAT). Exp. Path. 16, 109–120 (1978)
2. Ito, N., Tatematsu, M., Hirose, M., Nakanishi, K., Murasaki, G.: Enhancing effect of chemicals on production of hyperplastic liver nodules induced by N-2-fluorenylacetamide in hepatectomized rats. Gann 69, 143–144 (1978)
3. Peraino, C., Fry, R. J. M., Grube, D. D.: Drug-induced enhancement of hepatic tumorigenesis. In: Carcinogenesis. Slaga, T. J., Sivak, A., Boutwell, R. K. (eds.), Vol. 2, pp. 421–432. New York: Raven Press 1978
4. Sakai, A., Kountz, S. L.: Stimulation of hepatocytes and lymphocytes in vitro by liver regeneration. Nature 257, 53–54 (1975)
5. Sivak, A.: Cocarcinogenesis. Biochim. Biophys. Acta 560, 67–89 (1979)