title: Removal of acid hematin-type pigments from sections; efficacy of alcoholic picric acid solution.
mesh_terms: D000431:Ethanol; D005557:Formaldehyde; D006418:Heme; D006652:Histological Techniques; D006863:Hydrogen-Ion Concentration; D010851:Picrates; D010860:Pigments, Biological; D013997:Time Factors
chemical_list: D010851:Picrates; D010860:Pigments, Biological; D005557:Formaldehyde; D000431:Ethanol; D006418:Heme