Antrostomy. I.
D050723:Fractures, Bone / Q000601:surgery; D006801:Humans; D008443:Maxillary Sinus / Q000601:surgery*; D009298:Nasal Polyps / Q000601:surgery; D009915:Orbit / Q000293:injuries; D009957:Oroantral Fistula / Q000601:surgery; D012852:Sinusitis / Q000145:classification*