title: The nature of the adrenergic receptors of the trachea of the guinea-pig.
mesh_terms: D000818:Animals; D002395:Catecholamines / Q000494:pharmacology*; D004837:Epinephrine / Q000494:pharmacology; D004877:Ergoloid Mesylates / Q000494:pharmacology; D004983:Ethanolamines / Q000494:pharmacology; D006168:Guinea Pigs; D009638:Norepinephrine / Q000494:pharmacology; D010646:Phentolamine / Q000494:pharmacology; D013564:Sympathetic Nervous System / Q000187:drug effects*; D013565:Sympatholytics / Q000494:pharmacology*; D014132:Trachea / Q000294:innervation*
chemical_list: D002395:Catecholamines; D004983:Ethanolamines; D013565:Sympatholytics; D004877:Ergoloid Mesylates; D009638:Norepinephrine; D004837:Epinephrine; D010646:Phentolamine