Investigation of Vitamin D Levels and Analysis of Related Influence Factors in 3 270 Children between 0-12 Years Old in Taian Area
WANG Xiao-li, LI Min-min, LI Shu-yan, FENG Yong-jun, ZHANG Ning, JING Xiu-jie
ZHONGHUA YANGSHENG BAOJIAN . 2023, (5): 54 -57 .