title: [3 cases of porphyria cutanea tarda--change of urinary porphyrin excretion patterns after phlebotomy].
mesh_terms: D001815:Bloodletting; D006801:Humans; D008297:Male; D008875:Middle Aged; D011164:Porphyrias / Q000628:therapy* / Q000652:urine; D011166:Porphyrins / Q000652:urine*; D012871:Skin Diseases / Q000628:therapy* / Q000652:urine
chemical_list: D011166:Porphyrins