Park, Yong-Jin
Bae, Ji Hoon
Shin, Mu Heon
Hyun, Seung Hyup
Cho, Young Seok
Choe, Yearn Seong
Choi, Joon Young
Lee, Kyung-Han
Kim, Byung-Tae
Moon, Seung Hwan http://orcid.org/0000-0003-4302-1920
Article History
Received: 12 June 2018
Revised: 19 September 2018
Accepted: 7 January 2019
First Online: 7 February 2019
Compliance with Ethical Standards
:
: Yong-Jin Park, Ji Hoon Bae, Mu Heon Shin, Seung Hyup Hyun, Young Seok Cho, Yearn Seong Choe, Joon Young Choi, Kyung-Han Lee, Byung-Tae Kim, and Seung Hwan Moon declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of our institutional review board and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The institutional review board of our institute approved this retrospective study, and the requirement to obtain informed consent was waived.