Children who are exposed to lead are nearly three times more likely to be suspended from school by the 4th grade than children who are not exposed, according to a new University of Wisconsin-Madison study.
Fuente : http://www.eurekalert.org/pub_releases/2013-08/uow...
Fuente : http://www.eurekalert.org/pub_releases/2013-08/uow...



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