1. An anatomical sphincter of the oesophagogastric junction;Byrnes,1963
2. The lower end of the oesophagus;Hayward;Thorax,1961
3. Anatomy of the esophageal hiatus;Listerud;A.M.A. Arch. Surg.,1958
4. The esophagogastric junction;Mann;Surg. Gynec. & Obst.,1964
5. Esophageal hiatal diaphragmatic hernia and its complications;Paulson;Ann. Surg.,1962