Funding for this research was provided by:
National Research Foundation of Korea (NRF- 2020R1A2C4002594, NRF-2018-R1D1A1A02085328)
Received: 7 November 2019
Accepted: 5 November 2020
First Online: 9 January 2021
Ethics approval and consent to participate
: The ethics committee of Hallym University (2017-I102) approved the use of these data. Written informed consent was waived by the Institutional Review Board.
: Not applicable.
: The authors declare no conflict of interests.