title: Electron microscopic identification of viral particles in calcifying epithelioma induced by polyoma virus.
mesh_terms: D000818:Animals; D002781:Cholesteatoma / Q000209:etiology / Q000473:pathology*; D006651:Histocytochemistry; D051379:Mice; D008854:Microscopy, Electron; D009374:Neoplasms, Experimental / Q000473:pathology*; D011120:Polyomavirus