Kim, Ji Na
Kwon, Soon Tae
Shin, Hyun Dae
Article History
Received: 23 July 2020
Revised: 23 December 2020
Accepted: 27 December 2020
First Online: 11 January 2021
Compliance with ethical standards
: This study was approved by our institutional review board, which waived written informed consent (IRB File No. KBSMC 2020-02-033).
: The authors declare that they have no conflict of interest.