title: Orcein as a mucin stain for gastrointestinal tissue sections.
mesh_terms: D004064:Digestive System / Q000032:analysis*; D005767:Gastrointestinal Diseases / Q000378:metabolism; D006651:Histocytochemistry; D006801:Humans; D009077:Mucins / Q000032:analysis*; D010078:Oxazines; D013194:Staining and Labeling / Q000379:methods
chemical_list: D009077:Mucins; D010078:Oxazines; C002313:PAcein