Liu, Dongyang
Article History
Received: 17 October 2023
Accepted: 14 December 2023
First Online: 2 January 2024
Declarations
:
: The ethical approval committee of Henan University of Animal Husbandry and Economy approved this study and confirmed that the study has no side effects on the participants of the study. All experiments were performed in accordance with relevant guidelines and regulations. All methods were carried out in accordance with relevant guidelines and regulations. Informed consent was obtained from the parents of all the students who voluntarily participated in the study.
: Not applicable.
: The authors declare no competing interests.