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Authors
Ma, Ning
Zhang, Yujian
Liu, Binbin
Jia, Xiaojiao
Wang, Rui
Lu, Qiang
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Article History
Received: 25 May 2021
Accepted: 1 October 2021
First Online: 28 October 2021
Declarations
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: This study was approved by the ethics committee of the First Hospital of Qinhuangdao (Ethics Approval No. 2018H010), and performed in accordance with the ethical standards established by the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. Written informed consent was obtained from all subjects/patients.
: Not applicable.
: All of the authors had no any personal, financial, commercial or academic conflicts of interest separately.
