Gastroscopy with the Olympus GTF model.
D005756:Gastritis / Q000175:diagnosis; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis; D020699:Gastroscopes; D005773:Gastroscopy; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis; D010437:Peptic Ulcer / Q000175:diagnosis; D010781:Photography; D011178:Postgastrectomy Syndromes / Q000175:diagnosis; D011859:Radiography; D013272:Stomach Diseases / Q000000981:diagnostic imaging