Funding for this research was provided by:
Chung-Ang University (Graduate Research Scholarship in 2017)
National Research Foundation of Korea (2019R1A4A1024764, 2020R1F1A1048238)
Article History
Received: 24 June 2020
Accepted: 15 October 2020
First Online: 20 October 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was not performed on human subjects and was granted exemption from requiring ethics approval from the Institutional Review Board (IRB) of Incheon St. Mary’s Hospital, The Catholic University of Korea.