title: Symposium on Mammary Neoplasia. Introductory remarks.
mesh_terms: D000818:Animals; D001943:Breast Neoplasms / Q000401:mortality; D005260:Female; D006801:Humans; D005779:Immunodiffusion; D008325:Mammary Neoplasms, Experimental / Q000453:epidemiology / Q000209:etiology*; D008324:Mammary Tumor Virus, Mouse / Q000276:immunology; D051379:Mice; D008815:Mice, Inbred Strains