Kang, Kyong Min
Cho, Yo Seok
Min, Sa-Hong
Lee, Yoontaek
Park, Ki Bum
Park, Young Suk
Ahn, Sang-Hoon
Park, Do Joong
Kim, Hyung-Ho http://orcid.org/0000-0002-8916-0048
Article History
Received: 20 July 2018
Accepted: 27 January 2019
First Online: 13 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964 and later versions. The need for informed consent was waived because of the retrospective nature of the study design.