title: [Clinical study of tympanoplasty].
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002986:Clinical Trials as Topic; D006309:Hearing; D006801:Humans; D008722:Methods; D008875:Middle Aged; D011379:Prognosis; D013223:Statistics as Topic; D014432:Tympanic Membrane; D014433:Tympanoplasty