Kwon, Hye Ryeong
Pahk, Kisoo
Park, Sungsoo
Kwon, Hyun Woo http://orcid.org/0000-0002-0597-837X
Kim, Sungeun
Article History
Received: 27 May 2019
Revised: 22 October 2019
Accepted: 23 October 2019
First Online: 18 November 2019
Compliance with Ethical Standards
:
: Hye Ryeong Kwon, Kisoo Pahk, Sungsoo Park, Hyun Woo Kwon, and Sungeun Kim 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.
: The institutional review board of our institute approved this retrospective study (AN17196-001) and the requirement to obtain informed consent was waived.