title: The fine structure and innervation of the beta and delta cells in the islet of Langerhans of the cat.
mesh_terms: D000818:Animals; D002415:Cats / Q000033:anatomy & histology*; D003594:Cytoplasmic Granules; D007515:Islets of Langerhans / Q000166:cytology* / Q000294:innervation*; D008854:Microscopy, Electron