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Authors
Zhang, Yanan
Wei, Xiaoli
Cao, Chunxia
Yu, Fangfang
Li, Wenrong
Zhao, Guanghui
Wei, Haiyan
Zhang, Feng’e
Meng, Peilin
Sun, Shiquan
Lammi, Mikko Juhani
Guo, Xiong
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Article History
Received: 5 January 2021
Accepted: 7 July 2021
First Online: 18 September 2021
Declarations
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: The study was approved by Ethics Committee of Xi’an Jiaotong Univeristy, Xi’an, Shaanxi, China. Informed consents were obtained from parents of all participants since all participants were adolescents. All methods in this study were performed in accordance with the <i>Declaration of Helsinki</i>.
: Not applicable.
: The authors declared no conflict of interest.
