Koo, Kyo Chul
Lee, Jong Soo
Ha, Jee Soo
Han, Kyung Suk
Lee, Kwang Suk
Hah, Yoon Soo
Rha, Koon Ho
Hong, Sung Joon
Chung, Byung Ha http://orcid.org/0000-0001-9817-3660
Funding for this research was provided by:
National Research Foundation of Korea (NRF-2017R1C1B5017516)
Article History
Received: 22 July 2018
Accepted: 29 January 2019
First Online: 8 February 2019
Compliance with ethical standards
:
: All of the authors declare that they have no conflicts of interest to declare.
: 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.
: Informed consent was not required for the purposes of this study as it was based upon retrospective anonymous patient data and did not involve patient intervention or the use of human tissue samples.