Moon, Chang-Won http://orcid.org/0000-0003-4096-7470
Jung, Il-Young http://orcid.org/0000-0001-8204-8195
Xu, Yinzhu
Cho, Kang Hee
Article History
Received: 8 May 2020
Revised: 21 August 2020
Accepted: 21 August 2020
First Online: 7 September 2020
Compliance with ethical standards
:
: The study was approved by the Institutional Review Board of Chungnam National University Hospital, Korea (IRB No. 2018-11-054-002). The requirement for the acquisition of informed consent from the patients was waived owing to the retrospective nature of this study.
: The authors declare that they have no conflict of interest.