Study on the relationship between the blood lead level and behavior problems in the preschool children aged 3～7 years old in Shunyi district
LIU Ya-jing, JIA Mei-xiang, HE Ya-ping, WANG Xiu-yun, XIANG Zheng, CUI Wen-hong, LI Xue-ling, LIU Jian-hua, JI Wei-long
journal1 . 2011, (8): 743 -745 . 


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