Jung, Ju Young
Park, Sung Keun
Oh, Chang-Mo
Choi, Joong-Myung
Ryoo, Jae-Hong
Kim, Jihye
Kim, Mi Kyung
Article History
Received: 18 January 2019
Accepted: 8 June 2019
First Online: 26 June 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. Ethical approval.