Funding for this research was provided by:
National Research Foundation of Korea (2020R1G1A1100454)
Received: 14 March 2020
Accepted: 30 November 2020
First Online: 8 December 2020
Ethics approval and consent to participate
: The study was conducted under the guidelines of the Declaration of Helsinki and the study protocol was approved by the Institutional Review Board (IRB) of Inha University, Incheon, Korea (IRB No. 200129-1A). Written informed consent was obtained from all participants.
: All research participants consented to use their data de-identified data for publishing in scientific publications.
: The authors declare that they have no competing interests.