Porphyrin in the urine as a first symptom of leadpoisoning.
D001826:Body Fluids; D006801:Humans; D007854:Lead / Q000633:toxicity*; D007855:Lead Poisoning; D011166:Porphyrins; D014556:Urine
D011166:Porphyrins; D007854:Lead
LEAD/toxicity; URINE/porphyrin and porphyrin compounds