Status quo of screen time and influencing factors of excessive screen time in preschool children from central Gansu Province
HUANG Lei, LI Jiayue, MA Zhengyuan, WANG Pengli, WU Xiaoyan, GAO Yang, GUO Jinxian
Chinese Journal of Child Health Care . 2025, (1): 49 -54 .  DOI: 10.11852/zgetbjzz2023-0946


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