Mayo Clinic College of Medicine, Rochester, Minnesota
Address requests for reprints to: Keith D. Lindor, MD, Division of Gastroenterology and Hepatology, Mayo Clinic and Foundation, 200 First Street SW, Rochester, Minnesota 55905; fax: (507) 266-4531.
Supported by an overseas medical scholarship from the Faculty of Medicine, Siriraj Hospital, Mahidol University (P.C.).