title: MORPHOLOGICAL DISTINCTION OF TYPE B VIRUS PARTICLES IN MAMMARY TUMORS OF STRAIN A MICE.
mesh_terms: D000818:Animals; D030121:Betaretrovirus; D001943:Breast Neoplasms; D003585:Cell Biology; D004583:Electrons; D006801:Humans; D015674:Mammary Neoplasms, Animal; D008325:Mammary Neoplasms, Experimental; D051379:Mice; D008853:Microscopy; D008854:Microscopy, Electron; D008892:Milk; D009858:Oncogenic Viruses; D012106:Research; D014771:Virion
keywords: CYTOLOGY; EXPERIMENTAL LAB STUDY; MAMMARY NEOPLASMS, EXPERIMENTAL; MICE; MICROSCOPY, ELECTRON; MILK; ONCOGENIC VIRUSES