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Associations of physical activity with academic achievement and academic burden in Chinese children and adolescents: do gender and school grade matter? - BMC Public Health - BMC Public Health https://t.co/3Hyxu8fEe8
Associations of physical activity with academic achievement and academic burden in Chinese children and adolescents: do gender and school grade matter? - BMC Public Health - BMC Public Health https://t.co/3Hyxu8fEe8