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Authors
Zhao, Nan
Gao, Yutong
Ni, Chunsheng
Zhang, Danfang
Zhao, Xiulan
Li, Yanlei
Sun, Baocun
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Article History
Received: 24 June 2021
Accepted: 15 November 2021
First Online: 4 December 2021
Declarations
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: Ethical approval was obtained from the Ethical Committee of Tianjin medical university. At the time of death, consent for the autopsy and informed consent was obtained from the family.
: Not applicable.
: The authors declare that there are no competing interests.
