title: Endoscopy in diagnosis and treatment of choanal atresia.
mesh_terms: D004724:Endoscopy; D006801:Humans; D007231:Infant, Newborn; D007441:Intubation, Gastrointestinal; D009296:Nasal Cavity / Q000002:abnormalities*; D009305:Nasopharynx / Q000002:abnormalities*