title: The missed maxillary sinus ostium syndrome.
mesh_terms: D000328:Adult; D004724:Endoscopy; D005260:Female; D006801:Humans; D008443:Maxillary Sinus / Q000601:surgery*; D015523:Maxillary Sinusitis / Q000209:etiology*; D011183:Postoperative Complications / Q000601:surgery*; D012008:Recurrence