title: A simple apparatus for the assessment of Eustachian tube patency before myringoplasty.
mesh_terms: D005064:Eustachian Tube / Q000503:physiopathology*; D006309:Hearing; D006801:Humans; D009225:Myringoplasty; D011183:Postoperative Complications / Q000517:prevention & control*; D011312:Pressure