Funding for this research was provided by:
ministry of health and welfare (HI19C0114)
ministry of health and welfare (HI21C0011)
national research foundation of korea (NRF-2020R1A2B01001695)
Article History
Received: 21 July 2021
Accepted: 28 September 2021
First Online: 15 December 2021
Declarations
:
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.