Funding for this research was provided by:
Ministry of SMEs and Startups (S2828229)
Received: 30 July 2020
Accepted: 23 October 2020
First Online: 5 November 2020
Ethics approval and consent to participate
: The study protocol was approved by Korea University Anam Hospital Institutional Review Board (No: 2018AN0168). All study participants provided written informed consent before being enrolled in this study.
: Not applicable.
: The authors declare that they have no competing interests.