title: Proceedings: The noradrenaline concentration and the cholinesterase activity of the separated longitudinal and circular layers of muscle of the guinea-pig vas deferens.
mesh_terms: D000818:Animals; D002802:Cholinesterases / Q000032:analysis*; D006168:Guinea Pigs; D006651:Histocytochemistry; D008297:Male; D009130:Muscle, Smooth / Q000032:analysis* / Q000201:enzymology; D009638:Norepinephrine / Q000032:analysis*; D014649:Vas Deferens / Q000032:analysis*
chemical_list: D002802:Cholinesterases; D009638:Norepinephrine