title: Evidence favouring the existence of a single adrenergic receptor.
mesh_terms: D000818:Animals; D001001:Anura; D004285:Dogs; D004594:Electrophysiology; D004837:Epinephrine / Q000494:pharmacology*; D004983:Ethanolamines / Q000494:pharmacology; D006321:Heart / Q000187:drug effects*; D009119:Muscle Contraction / Q000187:drug effects*; D009638:Norepinephrine / Q000494:pharmacology; D010477:Perfusion; D010646:Phentolamine / Q000494:pharmacology; D011433:Propranolol / Q000494:pharmacology; D051381:Rats; D013696:Temperature
chemical_list: D004983:Ethanolamines; D011433:Propranolol; D009638:Norepinephrine; D004837:Epinephrine; D010646:Phentolamine