1. The fascinating history of bezoars;William;Med J Aust,1986
2. Bezoars: from mystical charms to medical and nutritional management;Sanders;Practical gastroenterology,2004
3. Bezoar stones;Malcom,1998
4. Bezoars: classification, pathophysiology, and treatment;Andrus;Am J Gastroenterol,1988
5. The stomach after surgery: an endoscopic perspective;Bowden;Ann Surg,1983