title: The ultrastructure of the secretory cells of the islets of Langerhans in man.
mesh_terms: D000328:Adult; D003594:Cytoplasmic Granules; D004721:Endoplasmic Reticulum; D006801:Humans; D007515:Islets of Langerhans / Q000166:cytology* / Q000378:metabolism; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D008928:Mitochondria