title: Effect of iron on the determination of proline and hydroxyproline in formalin-fixed coalworkers' lungs.
mesh_terms: D003032:Coal Mining; D005557:Formaldehyde; D006651:Histocytochemistry; D006801:Humans; D006909:Hydroxyproline / Q000032:analysis*; D007501:Iron / Q000494:pharmacology*; D008168:Lung / Q000032:analysis*; D008171:Lung Diseases / Q000473:pathology*; D011392:Proline / Q000032:analysis*
chemical_list: D005557:Formaldehyde; D011392:Proline; D007501:Iron; D006909:Hydroxyproline