title: Morphological and biochemical heterogeneity of cholinergic synaptic vesicles.
mesh_terms: D000109:Acetylcholine / Q000378:metabolism*; D000818:Animals; D002458:Cell Fractionation / Q000379:methods; D004557:Electric Organ / Q000648:ultrastructure; D004705:Endocytosis; D005089:Exocytosis; D005399:Fishes; D013572:Synaptic Vesicles / Q000378:metabolism*
chemical_list: D000109:Acetylcholine