Authors: Jae Hak Lee; Woo-Baek Chung; Ju Hyun Kang; Hyung Woo Kim; Jin Jin Kim; Ji Hyun Kim; Hui-Jeong Hwang; Jea Beom Lee; Jong Won Chung; Hyo Lim Kim; Yun Seok Choi; Chul Soo Park; Ho-Joong Youn; Man Young Lee Journal: Korean Circ J Date: 2010-11-30 Impact factor: 3.243