Funding for this research was provided by:
National Research Foundation of Korea (NRF-2017S1A3A2067165)
Yonsei University Research Grant of 2020
Article History
Accepted: 22 May 2021
First Online: 9 June 2021
Disclosures
:
: Jiwon Baek, Yoosik Youm, and Hyeon Chang Kim declare that they have no conflicts of interest.
: Informed consent was obtained from all individual participants included in the study.
: Yonsei University’s institutional review board approved this study (YUIRB-2011-012-01 in 2011; 1040917-201505-SB-152-05 in 2014; 7001988-201806-HRBR-244-04 in 2016; 7001988-201812-HR-505-02 in 2018).