Funding for this research was provided by:
National Research Foundation of Korea (NRF-2019M2D2A1A01058210, NRF-2020R1C1C1009000)
Ministry of Health and Welfare Korea (HI18C0886, HI19C0339)
Creative-Pioneering Researchers Program through Seoul National University
Article History
Received: 24 April 2020
Accepted: 28 August 2020
First Online: 3 September 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.