title: The different types of porphyria in Denmark and the importance of family studies.
mesh_terms: D004796:Clinical Enzyme Tests; D003718:Denmark; D004912:Erythrocytes / Q000201:enzymology; D006801:Humans; D011163:Hydroxymethylbilane Synthase / Q000097:blood; D008107:Liver Diseases / Q000453:epidemiology* / Q000235:genetics; D011164:Porphyrias / Q000145:classification / Q000453:epidemiology* / Q000235:genetics; D012042:Registries; D012871:Skin Diseases / Q000453:epidemiology* / Q000235:genetics
chemical_list: D011163:Hydroxymethylbilane Synthase