Yoon, Yeonyee E.
Kang, Si-Hyuck
Choi, Hong-Mi
Jeong, Seonji
Sung, Ji Min
Lee, Sang-Eun
Cho, Injeong
Cho, Goo-Yeong
Chang, Hyuk-Jae
Chun, Eun Ju http://orcid.org/0000-0002-1041-8035
Funding for this research was provided by:
National Research Foundation of Korea (2012027176, 2015R1D1A1A01059717)
Article History
Received: 18 October 2017
Revised: 3 December 2017
Accepted: 28 December 2017
First Online: 15 February 2018
Compliance with ethical standards
:
: The scientific guarantor of this publication is Eun Ju Chun
: 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.
: Written informed consent was waived by the institutional review board.
: Institutional review board approval was obtained.
: • retrospective• observational• multicentre study