1. From the Division of Gastroenterology and Hepatology, Department of Internal Medicine (C.Y.L., P.C.T., K.C.C., T.H.L., C.K.L., C.S.C.), and Department of Radiology (C.C.H., Y.M.T.), Far Eastern Memorial Hospital, 21 Nan-Ya South Rd, Section 2, Banciao District, New Taipei City, Taiwan 22060; and College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan (C.S.C.).