Received: 20 April 2020
Accepted: 7 August 2020
First Online: 18 August 2020
Ethics approval and consent to participate
: The study was reviewed and approved by the Institutional Review Board of Seoul National University Bundang Hospital (B-1008-110-005). All study participants provided written informed consent prior to enrollment.
: Not applicable.
: The authors declare that they have no competing interests.