Kim, Doo-Hwan
Park, Jun-Young
Yu, Jihion
Koh, Gi-Ho
Kim, Eunkyul
Hwang, Jai-Hyun
Kim, Young-Kug http://orcid.org/0000-0002-1982-3053
Article History
Received: 14 November 2018
Accepted: 13 February 2019
First Online: 20 February 2019
Compliance with ethical standards
:
: The authors declare no conflict of interests.
: Informed consent was obtained from all individual participants included in the study.
: 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.