title: Acute intermittent porphyria.
mesh_terms: D000642:Ammonia-Lyases / Q000378:metabolism*; D004912:Erythrocytes / Q000201:enzymology; D006801:Humans; D011163:Hydroxymethylbilane Synthase / Q000378:metabolism*; D011164:Porphyrias / Q000201:enzymology*
chemical_list: D011163:Hydroxymethylbilane Synthase; D000642:Ammonia-Lyases