Authors: Sun Bean Kim; Yong Duk Jeon; Jung Ho Kim; Jae Kyoung Kim; Hea Won Ann; Heun Choi; Min Hyung Kim; Je Eun Song; Jin Young Ahn; Su Jin Jeong; Nam Su Ku; Sang Hoon Han; Jun Yong Choi; Young Goo Song; June Myung Kim Journal: Yonsei Med J Date: 2015-03 Impact factor: 2.759