Kim, Sungwon
Han, Kyunghwa
Seo, Nieun
Kim, Hye Jin
Kim, Myeong-Jin
Koom, Woong Sub
Ahn, Joong Bae
Lim, Joon Seok http://orcid.org/0000-0002-0334-5042
Article History
Received: 10 March 2018
Revised: 22 April 2018
Accepted: 27 April 2018
First Online: 1 June 2018
Compliance with ethical standards
:
: The scientific guarantor of this publication is Joon Seok Lim, MD, PhD.
: 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.
: One of the authors has significant statistical expertise (Kyunghwa Han, PhD).
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained.
: • retrospective• case-control study• performed at one institution