title: Crystalline islet B-granules in the grass snake (Natrix natrix (L.)): tilting experiments in the electron microscope.
mesh_terms: D000818:Animals; D003461:Crystallography; D003594:Cytoplasmic Granules; D007515:Islets of Langerhans / Q000166:cytology*; D008722:Methods; D008854:Microscopy, Electron; D008961:Models, Structural; D012911:Snakes / Q000033:anatomy & histology*