Oh, Seong Min
Choi, Sang Ho
Kim, Hyun Jik
Park, Kwang Suk
Lee, Yu Jin http://orcid.org/0000-0001-5195-2579
Article History
Received: 20 September 2018
Revised: 5 December 2018
Accepted: 27 December 2018
First Online: 26 January 2019
Compliance with ethical standards
:
: All procedures 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.
: All authors declare that they have no conflict of interest.
: The Institutional Review Board of Seoul National University Hospital approved this retrospective study (IRB number 1708-081-877) and waived the requirement for informed consent.