Ethics approval and consent to participate
RECRUITMENT
Subjects were selected through offline recruitment. The children’s participation in the experiment was voluntary. Guardians or teachers of the participants signed and informed consent, which was uploaded in. The study was approved by the Human Experimentation Ethics Committee of Zhejiang Normal University (Project No.: ZSRT2022052) and registered with WHO International Clinical Trial Registry Platform (Registration number: ChiCTR2300067688; Reg Date:18/January/2023). All methods comply with relevant guidelines and regulations.