title: Subclinical lead poisoning in a group of children.
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007855:Lead Poisoning / Q000453:epidemiology* / Q000209:etiology; D010842:Pica / Q000150:complications* / Q000453:epidemiology; D011166:Porphyrins / Q000652:urine; D014768:Virginia
chemical_list: D011166:Porphyrins