[Evaluation of the roentgenological and endoscopic diagnosis in malignancies of the proximal digestive tract].
D001466:Barium Sulfate; D005773:Gastroscopy / Q000592:standards*; D006801:Humans; D011859:Radiography; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging
D001466:Barium Sulfate