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Authors
Gao, Li
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Article History
Received: 18 July 2022
Accepted: 4 September 2022
First Online: 24 October 2022
Declarations
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: Funding.
: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
: This research has no conflict of interests.
: The author declares that the work is written with due consideration of ethical standards. The study was conducted in accordance with the ethical principles approved by the Human Experiments Ethics Committee of Yulin University (Protocol No 2 of 12.12.2021).
: The parents of all the participants gave their written informed consent.
