Kim, Jang Hun
Hwang, Soon-Young
Kwon, Taek-Hyun
Chong, Kyuha
Yoon, Won-Ki
Kim, Jong Hyun
Article History
Received: 21 August 2018
Accepted: 26 November 2018
First Online: 4 December 2018
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 [2017GR0098] and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: For this type of study, formal consent is not required.