Prolonged screen time after school and familial influencing factors of second grader of primary school in Bao'an district, Shenzhen
LI Bo-ya, LIU Rui-guo, YOU Ying-bin, ZHANG Qing-ying
South China Journal of Preventive Medicine . 2022, (3): 281 -285 .  DOI: 10.12183/j.scjpm.2022.0281

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