Funding for this research was provided by:
Basic Science Research Program through the National Research Foundation of Korea (2017R1A2B4008517)
Article History
Received: 4 December 2018
Revised: 4 March 2019
Accepted: 2 April 2019
First Online: 23 April 2019
Compliance with ethical standards
:
: The scientific guarantor of this publication is Chang Min Park.
: 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.
: Some study subjects or cohorts have been previously reported in a journal article (Kim et al; in press).
: • retrospective• diagnostic or prognostic study• performed at one institution