Kim, Jun-Hyun
Yoon, Hyun-Kyu
Lee, Hyung-Chul
Park, Hee-Pyoung
Park, Chul-Kee
Dho, Yun-Sik
Hwang, Jung-Won http://orcid.org/0000-0002-0887-6889
Funding for this research was provided by:
Seoul National University Bundang Hospital (02-2014-033)
Article History
Received: 3 April 2019
Accepted: 22 August 2019
First Online: 31 August 2019
Compliance with ethical standards
:
: The sponsor had no role in the design or conduct of this research.
: The authors declare that they have no conflict of interest.
: This retrospective study was conducted after approval from the Institutional Review Board of Seoul National University Hospital (IRB no. 1811-078-985). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (name of institute/committee) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.Because this was a retrospective study, for this type of study formal consent is not required.
: This article does not contain any studies with human participants performed by any of the authors.