1. 1. J.E. Everhart, Gallstones, and J.E. Everhart . In: ed.Digestive diseases in the United States: Epidemiology and impact . NIH publication no. 94-1447. Washington, DC: U.S. Department of Health and Human Services, Public Health Service, National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, 1994 :649 -90 .
2. 2. P.F. Malet, D.J. Rosenberg, W.S. Haubrich, F. Schaffner, and J.E. Berk . Cholelithiasis: Gallstone pathogenesis, natural history, biliary pain, and nonsurgical therapy . In: eds.Cholelithiasis: Gallstone pathogenesis, natural history, biliary pain, and nonsurgical therapy . Philadelphia: W.B. Saunders, 1994 :2674 -2729, 5th ed.
3. Epidemiology and Natural History of Gallstone Disease
4. Prophylactic Cholecystectomy or Expectant Management for Silent Gallstones
5. The Natural History of Silent Gallstones