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Authors
Min, Cuili
Zhang, Aixia
Qin, Jing
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Article History
Received: 7 May 2019
Accepted: 2 September 2019
First Online: 23 September 2019
Ethics approval and consent to participate
: This study was reviewed and approved by the Ethics Committee of Yidu Central Hospital of Weifang. Written informed consent was obtained from each participant.
: Written informed consent for publication was obtained from each participant.
: The authors declare that they have no competing interests.
