title: Quantitative assay of erythrocyte "free" and zinc-protoporphyrin: clinical and genetic studies.
mesh_terms: D000818:Animals; D002417:Cattle; D004912:Erythrocytes / Q000032:analysis*; D006801:Humans; D011164:Porphyrias / Q000097:blood* / Q000235:genetics; D011166:Porphyrins / Q000097:blood*; D011524:Protoporphyrins / Q000097:blood*; D013050:Spectrometry, Fluorescence / Q000379:methods; D015032:Zinc / Q000097:blood*
chemical_list: D011166:Porphyrins; D011524:Protoporphyrins; D015032:Zinc