title: Preliminary report on virus-like particles in a transplantable rat mammary carcinoma.
mesh_terms: D000818:Animals; D017988:Gammaretrovirus; D008325:Mammary Neoplasms, Experimental / Q000097:blood / Q000209:etiology / Q000382:microbiology*; D051379:Mice; D008854:Microscopy, Electron; D009368:Neoplasm Transplantation; D013154:Spleen / Q000382:microbiology; D013950:Thymus Gland / Q000382:microbiology