Funding for this research was provided by:
the National Research Foundation of Korea funded by the Ministry of Science, ICT, and Future Planning (2017R1C1B5017453)
Article History
Received: 14 July 2020
Revised: 26 September 2020
Accepted: 23 October 2020
First Online: 31 October 2020
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: Not required.
: This study was conducted in accordance with the tenets of the Declaration of Helsinki. The study protocol was approved by the Institutional Review Board of Ajou University School of Medicine, Suwon, South Korea (AJIRB-MED-OBS-20-096).