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Authors
Ala, Musu
Liu, Junzhong
Kou, Jieli
Wang, Xinhua
Sun, Minfeng
Hao, Changcheng
Wu, Jianlin
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Article History
Received: 26 August 2021
Accepted: 20 March 2022
First Online: 11 May 2022
Declarations
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: This study was conducted in accordance with the declaration of Helsinki. This study was approved by the Ethics Committee of the Second People’s Hospital of Weifang. Because this was a retrospective study, informed consent was waived.
: We have obtained consent to publish from the participants (or legal parent or guardian) to report their individual patient data.
: The authors declare that they have no competing interests.
