Li, Li
Ma, Cheng-Jie
Chang, Yu-Fei
Yang, Si-Yuan
Tang, Yun-Xia
Wang, Ling-Hang
Funding for this research was provided by:
national key research and development project of china (2020YFA 0707600)
Article History
Received: 21 June 2020
Accepted: 21 December 2021
First Online: 17 January 2022
Declarations
:
: The present study was approved by the Clinical Ethics Committees of Beijing Ditan Hospital, Capital Medical University (Record number 2020014–01). All methods were performed in accordance with the relevant guidelines and regulations. The need of informed consent was waived by ethics committee of Beijing Ditan Hospital due to the retrospective nature of the study. We confirmed that the identification information of all participants (including patient names, ID numbers, home addresses and telephone numbers) would not be included in recordings, written descriptions or publications.
: Not applicable.
: The authors declare that they have no competing interests.