title: Mammary noduligenesis and tumorigenesis in pathogen-free C3Hf mice.
mesh_terms: D000367:Age Factors; D000818:Animals; D001947:Breeding; D005260:Female; D005856:Germ-Free Life; D006965:Hyperplasia; D008325:Mammary Neoplasms, Experimental; D051379:Mice; D008809:Mice, Inbred C3H; D013997:Time Factors