title: Investigations on possible presynaptic effect of adenosine and noradrenaline on cholinergic neurotransmission in guinea pig trachea.
mesh_terms: D000241:Adenosine / Q000494:pharmacology*; D000818:Animals; D006168:Guinea Pigs; D009638:Norepinephrine / Q000494:pharmacology*; D010275:Parasympathetic Nervous System / Q000502:physiology*; D009435:Synaptic Transmission / Q000187:drug effects*; D014132:Trachea / Q000187:drug effects*
chemical_list: D000241:Adenosine; D009638:Norepinephrine