
Changing trends of trace elements like calcium, iron and zinc in preschoolers in Baqiao District of Xi’an City
ZHANG Xing-xing, ZHAO Xiao-jun, YU Jun, ZHAO Hai-wei, QIAO Li, WANG Li, WANG Yue-fei
Practical Preventive Medicine ›› 2019, Vol. 26 ›› Issue (3) : 261-263.
Changing trends of trace elements like calcium, iron and zinc in preschoolers in Baqiao District of Xi’an City
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