TY - GEN AU - Vellisto,I E AU - Bang,F B TI - Effect of differential parity through five generations on the incidence of tumors in C3Hf mice SN - 0027-8874 PY - 1968///0827 KW - Age Factors KW - Animals KW - Breeding KW - Female KW - Mammary Neoplasms, Experimental KW - epidemiology KW - Mice KW - Microscopy, Electron KW - Parity KW - Pregnancy N1 - Publication Type: Journal Article ER -