Supplementary Material 1
The study approved by ethic committee of each participating hospitals as following.
1 Ajou University Hospital Institutional Review Board 2 Asan Medical Center Institutional Review Board
3 Busan Catholic Health System Maryknoll Medical Center Institutional Review Board 4 CHA Bundang Medical Center Institutional Review Board
5 Chosun University Hospital Institutional Review Board 6 Chung-Ang University Hospital Institutional Review Board
7 Chungbuk National University Hospital Institutional Review Board 8 Daegu Catholic University Medical Center Institutional Review Board 9 Daejeon Eulji Medical Center, Eulji University Institutional Review Board 10 Dong-A University Medical Center Institutional Review Board
11 Dongguk University Ilsan Hospital Institutional Review Board
12 Ewha Womans University Medical Center Mokdong Hospital Institutional Review Board 13 Gachon University Gil Medical Center Institutional Review Board
14 Gangnam Severance Hospital Institutional Review Board
15 Hallym University Kangnam Sacred Heart Hospital Institutional Review Board 16 Hanyang University Guri Hospital Institutional Review Board
17 Hanyang University Seoul Hospital Institutional Review Board 18 Inje University Haeundae Paik Hospital Institutional Review Board 19 Inje University Ilsan Paik Hospital Institutional Review Board 20 Konkuk University Medical Center Institutional Review Board 21 Korea University Ansan Hospital Institutional Review Board
22 Kyung Hee University Hospital at Gangdong Institutional Review Board 23 Kyung Hee University Hospital Institutional Review Board
24 Myongji Hospital Institutional Review Board
25 Nowon Eulji Medical Center, Eulji University Institutional Review Board 26 Pusan National University Yangsan Hospital Institutional Review Board 27 Samsung Changwon Hospital Institutional Review Board
28 Seoul Medical Center Institutional Review Board
29 Seoul National University Bundang Hospital Institutional Review Board 30 Seoul National University Hospital Institutional Review Board
31 SMG - SNU Boramae Medical Center Institutional Review Board
32 Soon Chun Hyang University Hospital Cheonan Institutional Review Board 33 Soon Chun Hyang University Hospital Seoul Institutional Review Board
34 The Catholic University of Korea, Busan St. Mary's Hospital Institutional Review Board 35 Ulsan Dong Gang Hospital Institutional Review Board
36 Ulsan University Hospital Institutional Review Board
37 Youngnam University Medical Center Institutional Review Board
