Kang, Moo Sung
Park, Jeong Yoon
Kuh, Sung Uk
Chin, Dong Kyu
Kim, Keun Su
Jin, Byung Ho
Cho, Yong Eun
Kim, Kyung Hyun
Article History
Received: 18 July 2019
Accepted: 6 September 2019
First Online: 25 October 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 (name of institute/committee) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.