Research on the current status and influencing factors of electronic screen exposure in children aged 4 to 6 years in Shandong
TENG Xiao-yu,DING Lei,SHAO Jing,YUAN An-xiang,SONG Jing,ZHANG Chun-guang,LI Ling, NIE Li-wei,LIU Xin,ZHAO Dong-mei,YANG Zhao-chuan,YI Ming-ji
journal1
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2019, (12): 1300
-1303
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DOI: 10.11852/zgetbjzz2019-0026
