Funding for this research was provided by:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) founded by the Ministry of Education (2019R1I1A3A01060561)
Received: 16 May 2020
Accepted: 22 December 2020
First Online: 4 January 2021
Ethics approval and consent to participate
: The present study was approved by the Institutional Review Board (IRB, 40525–201901-HR-126-02) at Keimyung University in Daegu City. The participants provided written consent after the study purpose was explained to them. The consent form outlined that participation is voluntary, participant anonymity will be protected, participants may withdraw their participation whenever they desire with no repercussions, and the collected data will be used solely for research purposes.
: Not applicable.
: The authors declare that they have no competing interests.