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Authors
Zhang, Feng
Wang, Feng
Li, Weiguo
Wang, Ning
Han, Chunlei
Fan, Shiying
Li, Peng
Xu, Lifeng
Zhang, Jianguo
Meng, Fangang https://orcid.org/0000-0002-4030-7811
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (81971070)
Beijing Municipal Administration of Hospitals Clinical Medicine Development of Special Funding Support (XMLX201833, ZYLX201820)
Natural Science Foundation of Ningxia Province (2018BFG02007)
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Article History
Received: 30 June 2020
Accepted: 9 March 2021
First Online: 17 March 2021
Declarations
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: All authors clearly consented to and approved this manuscript. The study strictly followed the ethical principles set out in the “Declaration of Helsinki “. All patients and their families (spouse or children) have informed consent and signed an informed consent form, the study was approved by the Medical Ethics Committee of Beijing Tiantan Hospital affiliated to Capital Medical University, and the ethics committee approved this form of proxy consent.
: Not applicable.
: There are no competing interests.
