Tseng J H, Pan K T, Hung C F, Hsieh C H, Liu N J, Tang J H
First Department of Diagnostic Radiology, Chang-Gung Memorial Hospital, 5 Fu-Hsing Street, Kwei-Shan, Taoyuan, Taiwan.
Abdom Imaging. 2003 Nov-Dec;28(6):838-41. doi: 10.1007/s00261-003-0050-x.