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| Analysis of Vitamin D Status and Influencing Factors among Children in Yucheng District, Ya’an City |
| LU Xiaoqin, DU Rui, ZHAO Yuqiang, YANG Chuang, LIU Yuxin, LEI Jiaojiao, LI Xin |
| First-author's address: School of Pharmacy and Testing, Ya’an Polytechnic College, Ya’an 625000, China |
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