Funding for this research was provided by:
Ministry of SMEs and Startups of South Korea (S2680996)
Ministry of Trade, Industry and Energy of South Korea (20003767)
Ministry of Science and ICT of South Korea (IITP-2018-0-01405)
Received: 1 June 2020
Accepted: 30 October 2020
First Online: 1 February 2021
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board (IRB) of Korea University Anam Hospital on October, 17, 2019 (IRB No. 2019AN0424). The IRB granted permissions to access the clinical/personal patient data used in this study. Informed consent was waived by the IRB.
: Not applicable.
: The authors declare that they have no competing interests.