title: Blood lead levels in normal and mentally deficiency children.
mesh_terms: D001925:Brain Damage, Chronic; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome; D006801:Humans; D008607:Intellectual Disability / Q000097:blood*; D007854:Lead / Q000097:blood* / Q000652:urine; D007855:Lead Poisoning / Q000175:diagnosis*; D007982:Levulinic Acids / Q000652:urine; D010396:Penicillamine; D010661:Phenylketonurias; D011166:Porphyrins / Q000652:urine
chemical_list: D007982:Levulinic Acids; D011166:Porphyrins; D007854:Lead; D010396:Penicillamine