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Authors
Zhao, Bei
Sun, Zhongye
Zhang, Wei
Xu, Zhongbao
Yang, Xiaofei
Mu, Weidong
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Article History
Received: 29 September 2019
Accepted: 2 April 2020
First Online: 11 April 2020
Ethics approval and consent to participate
: All patients have been fully informed the contents of this study, consented to participate in this study and signed informed consents form. This study was approved by the ethics committee of Liaocheng People’s Hospital.
: Not applicable.
: We have no conflict of interest concerning the materials or methods used in this study or the findings specified in this article. The authors declare that they have no competing interests.
