Park, Yang Shin
Lee, Jongmee
Kim, Jeong Woo
Park, Cheol Min
Lee, Chang Hee http://orcid.org/0000-0003-3381-2227
Funding for this research was provided by:
Korea University Grant (K1609801)
Article History
Received: 16 June 2018
Revised: 23 October 2018
Accepted: 19 November 2018
First Online: 14 December 2018
Compliance with ethical standards
:
: The scientific guarantor of this publication is Dr. Chang Hee Lee.
: The authors declare that they have no competing interests.
: 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