Kwon, Joon Ho
Kim, Man-Deuk http://orcid.org/0000-0002-3575-5847
Han, Kichang
Choi, Woosun
Kim, Yong Seek
Lee, Junhyung
Kim, Gyoung Min
Won, Jong Yun
Lee, Do Yun
Article History
Received: 28 March 2018
Revised: 25 May 2018
Accepted: 4 June 2018
First Online: 20 June 2018
Compliance with ethical standards
:
: The scientific guarantor of this publication is Man-Deuk Kim, Severance hospital, Yonsei University.
: The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
: No complex statistical methods were necessary for this paper.
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained.
: • retrospective• observational• performed at one institution