Authors: Won Tae Kim; Seok Joong Yun; Chunri Yan; Pildu Jeong; Ye Hwan Kim; Il Seok Lee; Ho Won Kang; Sunghyouk Park; Sung Kwon Moon; Yung Hyun Choi; Young Deuk Choi; Isaac Yi Kim; Jayoung Kim; Wun Jae Kim Journal: Yonsei Med J Date: 2016-07 Impact factor: 2.759