Luo, Qiang
Kim, Yong-Chan
Kim, Ki-Tack
Ha, Kee-Yong
Ahn, Joonghyun
Kim, Sung-Min
Kim, Min-Gyu
Article History
Received: 4 May 2021
Accepted: 2 August 2021
First Online: 10 August 2021
Declarations
:
: This study was approved by the Institutional Review Board (IRB# 2020–10-013) of the Kyung Hee University Hospital at Gangdong, Gangdong-gu, Seoul, Korea. The requirement for informed consent was waived by the IRB due to the retrospective nature of the study design. This study was performed in line with the principles of the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.