[Experimental pathology study on the pathogenesis of malignant ear tumors and the formation of cholesteatoma].
D000818:Animals; D002294:Carcinoma, Squamous Cell / Q000139:chemically induced / Q000473:pathology*; D002781:Cholesteatoma / Q000139:chemically induced / Q000473:pathology*; D004428:Ear Neoplasms / Q000139:chemically induced / Q000473:pathology*; D008297:Male; D008748:Methylcholanthrene; D051379:Mice; D009374:Neoplasms, Experimental
D008748:Methylcholanthrene