title: Tympanoplasty.
mesh_terms: D002781:Cholesteatoma / Q000601:surgery; D003638:Deafness / Q000601:surgery; D004429:Ear Ossicles / Q000601:surgery; D006801:Humans; D008416:Mastoid / Q000601:surgery; D008417:Mastoiditis / Q000601:surgery; D008722:Methods; D010033:Otitis Media / Q000601:surgery; D011138:Polytetrafluoroethylene; D019736:Prostheses and Implants; D013201:Stapes Surgery; D014184:Transplantation, Homologous; D014432:Tympanic Membrane / Q000637:transplantation; D014433:Tympanoplasty
chemical_list: D011138:Polytetrafluoroethylene