1. Diaphragmatic Hernia, Esophagitis, Ulcer, and Stenosis of the Esophagus;Barraya;Mém. Acad. chir.,1953
2. Reflections Concerning Eleven Heller Operations;Barrier;Mem. Acad. chir.,1953
3. Clinical Roentgenology of the Digestive Tract;Feldman,1942
4. Harrington, S. W.: Personal communication.
5. Statistical Study of Diseases of the Esophagus;MacMillan;Surg., Gynec. & Obst.,1935