title: Hair trace metal levels and environmental exposure.
mesh_terms: D000397:Air Pollution; D000704:Analysis of Variance; D001151:Arsenic / Q000032:analysis; D002104:Cadmium / Q000032:analysis; D002648:Child; D003300:Copper / Q000032:analysis; D006801:Humans
chemical_list: D002104:Cadmium; D003300:Copper; D001151:Arsenic