Lee, Min Ho
Lee, Seunghoon
Park, Sang-Ku
Lee, Jeong-A
Park, Kwan http://orcid.org/0000-0002-3263-6594
Article History
Received: 8 November 2018
Accepted: 11 December 2018
First Online: 19 December 2018
Compliance with ethical standards
:
: The authors 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 research committee (Institutional Review Board of Samsung Medical Center/SMC 2014-04-028-001) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The requirement for informed consent was waived, as the study used existing clinical data.