1. Cecil and Loeb, Textbook of Medicine;Jones,1955
2. Diseases of Esophagus;Vinson,1941
3. Radiology of Esophagus;Johnstone,1952
4. Peptic Ulceration of Oesophagus with Partial Thoracic Stomach;Johnstone;Brit. J. Radiol,1943
5. Diagnosis of Early Gastric Herniation at Oesophageal Hiatus;Johnstone;J. Fac. Radiologists,1951