title: Ultrastructural cytochemistry of atrial muscle cells. III. Reactivity of specific granules in man.
mesh_terms: D001706:Biopsy; D002467:Cell Nucleus / Q000648:ultrastructure; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D005260:Female; D006056:Golgi Apparatus / Q000648:ultrastructure; D006325:Heart Atria / Q000648:ultrastructure*; D006801:Humans; D008247:Lysosomes / Q000648:ultrastructure; D008297:Male; D009210:Myofibrils / Q000648:ultrastructure; D012519:Sarcoplasmic Reticulum / Q000648:ultrastructure