Shen, Zhemin
Wang, Xueqiao
Zhen, Zili
Wang, Yao
Sun, Peilong
Article History
Received: 16 July 2020
Accepted: 9 December 2020
First Online: 6 January 2021
Ethics approval and consent to participate
: The study was conducted according to the Declaration of Helsinki and approved by the institutional research board of Jinshan Hospital (IEC-2020-S21). Informed consent was waived due to the retrospective nature of this study and the fact that patients were deidentified.
: Not applicable.
: The authors declare that they have no competing interests.