Kang, Ho Won
Seo, Sung Pil
Ha, Yun-Sok
Kim, Won Tae
Kim, Yong-June
Yun, Seok-Joong
Kim, Wun-Jae
Lee, Sang-Cheol http://orcid.org/0000-0002-4163-2210
Funding for this research was provided by:
International Science and Business Belt Program (2015-DD-RD-0070)
Article History
Received: 19 December 2018
Accepted: 16 February 2019
First Online: 14 May 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts 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.
: The requirement for informed consent was waived due to the retrospective nature of the study.