Institution: | (1) Department of Radiology, Pusan National University Hospital, Medical Research Institute, Busan, Korea;(2) Department of Radiology, Pusan National University, School of Medicine, 1-10 Ami-dong, Seo-gu, Busan, 602-739, Korea;(3) Department of Radiology, Kyungpook National University Hospital, Daegu, Korea;(4) Department of Radiology, Yeungnam University College of Medicine, Daegu, Korea;(5) Department of Radiology, Inje University Haeundae Paik Hospital, Busan, Korea; |