Lead--an essential trace element.
Manser
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WW
D000818:Animals; D001774:Blood Chemical Analysis; D006041:Goats; D006168:Guinea Pigs; D006801:Humans; D007854:Lead / Q000097:blood / Q000737:chemistry*; D007855:Lead Poisoning / Q000097:blood / Q000209:etiology*; D014131:Trace Elements / Q000097:blood / Q000737:chemistry*
D014131:Trace Elements; D007854:Lead