Song, Han Sol
Bae, Sung Man http://orcid.org/0000-0001-5762-4306
Article History
First Online: 11 June 2020
Compliance with Ethical Standards
:
: The authors declare no potential conflicts of interest with respect to the research, authorship, or publication of this article.
: All procedures performed in studies 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. The study was approved by the Dankook University Institutional Review Board.
: Informed consent was obtained from all individual participants included in the study.