title: Effect of formalin pigment removal on peroxidase-antiperoxidase immunoperoxidase technique.
mesh_terms: D001578:Benzopyrans; D005557:Formaldehyde; D006416:Hematoxylin / Q000031:analogs & derivatives; D007124:Immunoenzyme Techniques; D010860:Pigments, Biological
chemical_list: D001578:Benzopyrans; D010860:Pigments, Biological; D005557:Formaldehyde; C007915:hematein; D006416:Hematoxylin