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Authors
Li, Guangjun
Kong, Qingli
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Article History
Received: 25 August 2019
Accepted: 9 December 2019
First Online: 23 December 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Yuncheng county hospital of traditional Chinese medicine.
: Not applicable.
: The authors declare that they have no competing interests.
