1. Continuously recorded in situ pH of gastric and duodenal contents in patients with and without duodenal ulcers;Rovelstad;Gastroenterology,1956
2. The Esophagus and Pharynx in Action;Lerche,1950
3. Reflux esophagitis, sliding hiatal hernia, and anatomy of repair;Allison;Surg. Gynec. & Obst.,1951
4. X-Ray Examination of the Stomach;Τempletion,1944