Funding for this research was provided by:
Hallym University (HURF-2018-51)
Ministry of Education (No. NRF-2019R1C1C100446312)
Received: 13 July 2020
Accepted: 5 October 2020
First Online: 14 October 2020
Ethics approval and consent to participate
: The study was approved by Hallym University Sacred Heart Hospital Institutional Review Board (IRB No. 2019–03–014-001).
: Not applicable.
: The authors have no conflicts of interest to declare.