Koo, Bonjin
Lee, Eun-Suk
Article History
Received: 13 December 2017
Accepted: 5 June 2020
First Online: 22 March 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this study involving human participants were in accordance with the Ethical Standards of the Institutional and/or National Research Committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.