1. CDC (U.S. Centers for Disease Control and Prevention). Fourth National Report on HumanExposure to Environmental Chemicals. Atlanta, GA: U.S. Centers forDisease Control and Prevention, (2009.
2. Exposure assessment of persistent organic pollutants and metals in Mexican children
3. Mattel Web site: Consumer Relations Answer Center - Product Recall/Advisory.http://service.mattel.com/us/recall.asp.
4. CPSC (U.S. Consumer Product Safety Commission) Web site:McDonald’s Recalls Movie Themed Drinking Glasses Due to PotentialCadmium Risk. http://www.cpsc.gov/cpscpub/prerel/prhtml10/10257.html.