Effect of exposure to environmental lead and cadmium on intelligence of children aged 9 to 11 years in an industrial zone of Guangdong Province
PAN Shang xia, ZENG Fan , QU Ya bin, HUANG Jin xu, HE Chang yun, JIN Xiao ling.
S China J Prev Med . 2015, (6): 517 -520 .  DOI: 10.13217/j.scjpm.2015.0517

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