自贡市6~18岁中小学生视力不良现状调查

刘晓, 张宏艳, 李爽乐

Investigation on poor vision of primary and middle school students aged 6-18 in Zigong

LIU Xiao, ZHANG Hong-yan, LI Shuang-le

华南预防医学 . 2021, (8): 972 -975 . DOI: 10.12183/j.scjpm.2021.0972