Funding for this research was provided by:
the Ministry of Science and ICT (E0170601-04)
Received: 13 April 2020
Accepted: 8 July 2020
First Online: 17 July 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board (IRB) of Chung-Ang University Hospital (IRB number 1750–002-281). Written informed consent was obtained from the participants.
: Not applicable.
: The authors declare that they have no competing interests.