Funding for this research was provided by:
2018 Yeungnam University Research Grant (218A580038)
Article History
Received: 17 June 2020
Accepted: 4 November 2020
First Online: 14 November 2020
Ethics approval and consent to participate
: The present study protocol was reviewed and approved by the Institutional Review Board of Yeungnam University Hospital (approval No. YUMC 2019–10-025). The need to obtain informed consent was waived because of the retrospective nature of the study.
: The authors have no potential conflicts of interest to disclose.