title: [Teflon prosthesis for the type IV tympanoplasty and the determination of the impedance of the tympanic membrane after the operation].
mesh_terms: D006801:Humans; D011138:Polytetrafluoroethylene; D019736:Prostheses and Implants; D014432:Tympanic Membrane / Q000502:physiology*; D014433:Tympanoplasty
chemical_list: D011138:Polytetrafluoroethylene