title: Histochemical demonstration of soluble and fixation-labile acetylcholinesterase activity in the optic tectum of rudd and frog with a semipermeable membrane technique.
mesh_terms: D000110:Acetylcholinesterase / Q000378:metabolism*; D000818:Animals; D003530:Cyprinidae; D006651:Histocytochemistry; D008567:Membranes, Artificial; D010539:Permeability; D011893:Rana esculenta; D012995:Solubility; D013477:Superior Colliculi / Q000166:cytology / Q000201:enzymology*
chemical_list: D008567:Membranes, Artificial; D000110:Acetylcholinesterase