title: Virus particles in rat leukemias.
mesh_terms: D000818:Animals; D001853:Bone Marrow / Q000382:microbiology; D004721:Endoplasmic Reticulum / Q000382:microbiology; D005260:Female; D009052:Leukemia Virus, Murine / Q000302:isolation & purification*; D007942:Leukemia, Experimental / Q000382:microbiology*; D007945:Leukemia, Lymphoid / Q000382:microbiology; D007948:Leukemia, Monocytic, Acute / Q000382:microbiology; D007951:Leukemia, Myeloid / Q000382:microbiology; D008198:Lymph Nodes / Q000382:microbiology; D008854:Microscopy, Electron; D051381:Rats; D013154:Spleen / Q000382:microbiology; D013950:Thymus Gland / Q000382:microbiology