Gastric ulcer or gastric cancer?
D000818:Animals; D001466:Barium Sulfate; D003287:Contrast Media; D003937:Diagnosis, Differential; D004864:Equipment and Supplies; D005773:Gastroscopy; D011859:Radiography; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013276:Stomach Ulcer / Q000175:diagnosis* / Q000000981:diagnostic imaging
D003287:Contrast Media; D001466:Barium Sulfate