Kim, Keun Tae http://orcid.org/0000-0002-7124-0736
Cho, Yong Won http://orcid.org/0000-0002-6127-1045
Bae, Jin Gon http://orcid.org/0000-0001-6127-162X
Article History
Received: 9 January 2020
Revised: 21 February 2020
Accepted: 24 February 2020
First Online: 10 March 2020
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional 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.