title: Pathogenesis of feline viral fibrosarcomas: dose and age effects.
mesh_terms: D000367:Age Factors; D000818:Animals; D002415:Cats; D002474:Cell-Free System; D005354:Fibrosarcoma / Q000209:etiology*; D008854:Microscopy, Electron; D009365:Neoplasm Regression, Spontaneous; D012190:Retroviridae; D012513:Sarcoma, Experimental / Q000209:etiology*; D013997:Time Factors