Na, Kiyong
Kim, Hyun-Soo
Shim, Hyo Sup
Chang, Jong Hee
Kang, Seok-Gu
Kim, Se Hoon http://orcid.org/0000-0001-7516-7372
Funding for this research was provided by:
National Research Foundation of Korea (2016M3C7A1913844)
Article History
Received: 17 November 2018
Accepted: 29 January 2019
First Online: 1 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: 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.
: Informed consent was obtained from all individual participants included in the study.