Affiliation: | (1) Department of Radiology, Center for Imaging Science, Ewha Medical Center, Ewha Medical Research Institute, Ewha Womans University School of Medicine, Mokdong Hospital, Mok 5-dong, Yangcheon-gu, Seoul, 158-710, Korea;(2) Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 135-710, Korea |