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Authors
Zhang, Xiaoxia
Chen, Senlin
Gu, Xiangli
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Article History
Received: 22 January 2020
Revised: 25 March 2020
Accepted: 31 March 2020
First Online: 27 April 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The University of North Texas Institutional Review Board (IRB) reviewed and approved the study protocol prior to data collection. Informed written consents and minors’ assent were obtained from parents and children as per the IRB approval.
