Lead poisoning.
D006801:Humans; D007854:Lead / Q000097:blood; D007855:Lead Poisoning / Q000097:blood*; D007982:Levulinic Acids / Q000652:urine; D011166:Porphyrins / Q000097:blood
D007982:Levulinic Acids; D011166:Porphyrins; D007854:Lead