1. A NEW ROENTGEN-RAY SIGN OF ULCERATING GASTRIC CANCER
2. Carman RD, Miller A.The roentgen diagnosis of diseases of the alimentary canalPhiladelphia, Pa: Saunders, 1917.
3. Hampton AO.A safe method for the roentgen demonstration of bleeding duodenal ulcers.AJR Am J Roentgenol1937; 38:565-570.
4. Schatzki R, Gary JE.Dysphagia due to diaphragm-like localized narrowing in lower esophagus (“lower esophageal ring”).AJR Am J Roentgenol1953; 70:911-922.
5. Schatzki R, Gary JE.Face-on demonstration of ulcers in the upper stomach in a dependent position.AJR Am J Roentgenol1958; 79:77-80.