Cho, Jae Ho
Shin, Cheol Min
Han, Kyung-Do
Yoon, Hyuk
Park, Young Soo
Kim, Nayoung
Lee, Dong Ho http://orcid.org/0000-0002-6376-410X
Article History
Received: 26 March 2019
Accepted: 18 November 2019
First Online: 2 December 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures involving human participants were performed in accordance with the ethical standards of the institutional and national research committees, and the 1964 Helsinki Declaration including its later amendments or comparable ethical standards. Informed consent for using information was exempted by the institutional and national research committees because this study used only previously collected data.