| http://www.w3.org/ns/prov#value | - Q & A for Mercury Poisoning Cluster Associated with Use of (http://www.dshs.state.tx.us/epitox/mercury-QA.shtm) 2 Sep 2011 A1: Mercury is a naturally occurring element that can exist as metallic powders, acne creams, skin lightening creams, or treatments for indigestion.
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