Received: 22 May 2020
Accepted: 23 November 2020
First Online: 7 December 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of the Ajou University Hospital (IRB No: AJIRB-MED-MDB-18-295). Subjects read and signed informed consent.
: Not applicable.
: The authors declare that they have no competing interests.