1. Apolant, H., 1906, Die epithelialen Geschwülste der Maus. Arb. Kgl. Inst. Expt. Therapie, Frankfurt, pp. 11-62.
2. Appleby, E.C., Keymer, I.F., and Hirne, J.M., 1974, Three cases of suspected mammary neoplasia in non-human primates. J. Comp. Pathol., 84, 351–364.
3. Bentvelzen, P., 1974, Host-virus interactions in murine mammary carcinogenesis. Biochem. Biophys. Acta, 355, 236–259.
4. Bern, H.A., and Nandi, S., 1961, Recent studies of the hormonal influence in mouse mammary tumorigenesis. Prog. Exp. Tumor Res., 2, 90–144.
5. Beuving, L.J., Bern, H.A., and DeOme, K.B., 1967a, Occurence and transplantation of carcinogeninduced hyperplastic nodules in Fischer rats. J. Natl. Cancer Inst., 39, 431–447.