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Authors
Lin, Wei
Dai, Yike
Niu, Jinghui
Yang, Guangmin
Li, Ming
Wang, Fei
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Article History
Received: 1 May 2020
Accepted: 24 June 2020
First Online: 29 June 2020
Ethics approval and consent to participate
: This study was approved by the Third Hospital of Hebei Medical University and followed the Declaration of Helsinki. Written informed consent was obtained from all the patients.
: Not applicable.
: The authors declare that they have no competing interests.
