Beom, Seung-Hoon
Choi, Yoon Young
Baek, Song-Ee
Li, Shuang-Xi
Lim, Joon Seok
Son, Taeil
Kim, Hyoung-Il
Cheong, Jae-Ho
Hyung, Woo Jin
Choi, Seung Ho
Jung, Minkyu
Kim, Hyo Song
Jeung, Hei-Cheul
Chung, Hyun Cheol
Rha, Sun Young
Noh, Sung Hoon
Article History
Received: 17 January 2018
Accepted: 28 October 2018
First Online: 15 November 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Severance Hospital, Yonsei University College of Medicine (4–2016-0408). The need for consent to participate has been was waived by the Institutional Review Board because of retrospective design of this study.
: Not applicable.
: The authors declare that they have no competing interests.
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