1. A study of peptic ulcer based on necrospy records;Portis;J. A. M. A.,1938
2. Gastric and duodenal ulcer;Sturteyant;Arch. In t. Med.,1926
3. Ulcer in the descending duodenum;Borman;Am. J. Roentgenol.,1943
4. Ulcer of the second portion of the duodenum;Brule;Arch. d. mal. de l'app. digestif.,1936
5. Post bulbar duodenal ulcers;Alvarez;Gastroenterology,1947