Funding for this research was provided by:
the national research foundation of korea (2019R1A2C2004214, 2020R1A2C1102386, 2021R1A6A1A03038899)
Received: 13 July 2021
Accepted: 6 November 2021
First Online: 8 December 2021
: The present study was conducted in accordance with the Helsinki Declaration and approved by the Institutional Review Board of Hanyang University, Seoul (IRB 2014-05-002), and Guri Hospital (IRB 2014-05-001). The written informed consent was obtained from all subjects.
: Not applicable.
: The authors declare that they have no competing interests.