title: VENTILATION OF THE NORMAL AND BLOCKED MIDDLE EAR; A REVIEW OF MECHANISMS.
mesh_terms: D000337:Aerospace Medicine; D000715:Anatomy; D002404:Catheterization; D004432:Ear, Middle; D005064:Eustachian Tube; D006801:Humans; D010827:Physiology; D012119:Respiration; D014636:Valsalva Maneuver
keywords: ANATOMY; AVIATION MEDICINE; CATHETERIZATION; EAR, MIDDLE; EUSTACHIAN TUBE; PHYSIOLOGY; RESPIRATION; VALSALVA'S MANEUVER