title: Contrast radiography in the follow-up of nasopharyngeal tumours.
mesh_terms: D000328:Adult; D003287:Contrast Media; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009303:Nasopharyngeal Neoplasms / Q000175:diagnosis* / Q000532:radiotherapy*; D011859:Radiography; D011882:Radiotherapy, High-Energy
chemical_list: D003287:Contrast Media