Funding for this research was provided by:
Asan Institute for Life Sciences, Asan Medical Center
Received: 13 May 2020
Accepted: 1 September 2020
First Online: 7 September 2020
Ethics approval and consent to participate
: This study was approved and informed consent was waivered by the Institutional Review Board of Asan Medical Center (IRB number:2016–0481).
: Not applicable.
: The authors declare that they have no competing interests.