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陈玲, 廖志兴, 张玉, 曾婷
Study on serum 25-hydroxyl vitamin D levels of children aged 1 to 6 years in Liuzhou area
CHEN Ling, LIAO Zhi-xing, ZHANG Yu, ZENG Ting
中国儿童保健杂志 . 2019, (5): 568 -570 .  DOI: 10.11852/zgetbjzz2018-1628