Choi, Byung Wook
Jeong, Young Ju
Park, Sung Hwan
Oh, Hoon Kyu
Kang, Sungmin http://orcid.org/0000-0003-1959-8578
Article History
Received: 30 June 2019
Revised: 23 August 2019
Accepted: 10 September 2019
First Online: 28 October 2019
Compliance with Ethical Standards
:
: Byung Wook Choi, Young Ju Jeong, Sung Hwan Park, Hoon Kyu Oh, and Sungmin Kang 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. For this type of study, formal consent is not required.
: The institutional review board of our institute approved this retrospective study, and the requirement to obtain informed consent was waived.