1. Plasma-gastrin and acid secretion in patients with peptic ulceration;Wesdorp;Lancet,1974
2. Gastric ulcers with and without associated duodenal ulcer have different pathophysiology;Lam;Clin Sci Mol Med,1978
3. Parietal cell vagotomy for duodenal ulcers II: histopathology and gastric secretion;Poppen;Am J Surg,1981
4. Ulcers of the pyloric channel;Murray;Am J Surg,1967