Article History
Received: 22 August 2019
Accepted: 20 April 2020
First Online: 4 May 2020
Compliance with ethical standards
:
: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
: The present study was conducted in accordance with the institutional ethical committee of Wonju Severance Christian Hospital.
: Patient informed consent was obtained at the time of study enrollment.