title: Virus particles in hamster tumors as revealed by electron microscopy.
mesh_terms: D000818:Animals; D006224:Cricetinae; D007181:Inclusion Bodies, Viral; D009052:Leukemia Virus, Murine; D008854:Microscopy, Electron; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental / Q000473:pathology*