title: Secretory and serous otitis media (SOM).
mesh_terms: D000233:Adenoidectomy; D002245:Carbon Dioxide / Q000032:analysis; D004432:Ear, Middle / Q000473:pathology / Q000503:physiopathology; D005122:Exudates and Transudates / Q000382:microbiology; D006801:Humans; D009092:Mucous Membrane / Q000473:pathology; D010033:Otitis Media / Q000175:diagnosis / Q000473:pathology / Q000628:therapy; D010100:Oxygen / Q000032:analysis; D011312:Pressure; D014068:Tonsillectomy
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen