title: Ruthenium red staining of ultrathin sections of human mast-cell granules.
mesh_terms: D001706:Biopsy; D002021:Buffers; D002467:Cell Nucleus; D004396:Coloring Agents; D003594:Cytoplasmic Granules / Q000032:analysis*; D006025:Glycosaminoglycans / Q000032:analysis; D006651:Histocytochemistry; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008407:Mast Cells; D008722:Methods; D008854:Microscopy, Electron; D008928:Mitochondria; D012270:Ribosomes; D012428:Ruthenium; D013194:Staining and Labeling; D014582:Urticaria Pigmentosa / Q000473:pathology
chemical_list: D002021:Buffers; D004396:Coloring Agents; D006025:Glycosaminoglycans; D012428:Ruthenium