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2. Scientific Committee on Emerging and Newly Identified Health Risks 2008 http://ec.europa.eu/health/ph_risk/committees/04_scenihr_o_016.pdf
3. Scientific Committee on Emerging and Newly Identified Health Risks 2008 http://ec.europa.eu/health/ph_risk/committees/04_scenihr_o_016.pdf
4. European Commission 2008 Tooth filling materials: dental amalgams and alternative materials http://ec.europa.eu/health/opinions/en/dental-amalgam/