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2. A Study Of Peptic Ulcer Based On Necropsy Records;Portis;J. A. M. A.,1938
3. Small Gastric Cancer;Comfort;A. M. A. Arch. Int. Med.,1954
4. The Association Of Duodenal Ulcer And Gastric Carcinoma;Wilbur;Proc. Staff. Meet. Mayo Clin.,1932
5. Coexistent Duodenal Ulcer And Gastric Malignancy;Fischer;Surgery,1947