Association of screen exposure, outdoor activities with sleep among toddlers
XIE Liang-liang, YAN Shuang-qin, CAO Hui, GAO Guo-peng, CAI Zhi-ling, WANG Su-mei, YIN Xiao-gang, XIE Fang-fang, ZHU Hai-qin, LI Qing, TAO Fang-biao
Chinese Journal of Child Health Care . 2022, (5): 566 -569 .  DOI: 10.11852/zgetbjzz2021-1832