1. Historical perspectives of functional bowel disease;Almy,1989
2. Experiments and observations on the gastric juice and the physiology of digestion;Beaumont,1959
3. The work of digestive glands;Pavlov,1910
4. The influence of emotional states on the functions of the alimentary canal;Cannon;Am J Med Sci,1909
5. Human gastric function: an experimental study of a man and his stomach;Wolf,1943