title: Modification of the Grimelius and de Grandi method and its value for demonstrating argyrophilia of endocrine polypeptide APUD cells.
mesh_terms: D001078:APUD Cells / Q000166:cytology*; D000818:Animals; D004702:Endocrine Glands / Q000166:cytology*; D006651:Histocytochemistry; D006801:Humans; D051379:Mice; D010455:Peptides / Q000378:metabolism*; D051381:Rats; D012835:Silver Nitrate; D013194:Staining and Labeling / Q000379:methods*
chemical_list: D010455:Peptides; D012835:Silver Nitrate