Funding for this research was provided by:
National Research Foundation of Korea (NRF-216R1A2B4016318)
Asan Institute for Life Sciences (18-495)
Article History
Received: 30 April 2019
Accepted: 3 February 2020
First Online: 6 February 2020
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board of Asan Medical Centre (2017–1190).
: Not applicable.
: The authors declare that they have no competing interests.