Lou, Teng-fei
Ren, Zun
Sun, Zheng-hua
Wang, Wei
Fan, Cun-yi
Article History
Received: 29 November 2020
Accepted: 9 February 2021
First Online: 24 February 2021
Ethics approval and consent to participate
: The retrospective study was approved by the Ethics Committee of Shanghai Sixth People’s Hospital, and informed consent was waived due to the retrospective nature of this study.
: Not applicable.
: The authors declare that they have no competing interests.