2Creed F, Guthrie E. Psychological factors in the irritable bowel syndrome. Gut 1987;28:1307-1312.
3Talley NJ, Phillips SF, Bruce B, Twomey CK, Zinsmeister AR,Melton LJ. Relation among personality and symptoms in nonulcer dyspepsia and the irritable bowel syndrome. Gastroenterology 1990;99:327-332.
6McRae S, Younger K, Thompson DG, Wingate DL. Sustained mental stress alters human jejunal motor activity. Gut 1992;23:404-409.
7Valori RM, Kumar K, Wingate DL. Effect of different types of stress and of pointier drug on the control of the fasting motor complex in humans. Gastroenterology 1986;90:1890-1900.
