title: A new tracheal strip preparation for the evaluation of beta-adrenergic activity.
mesh_terms: D000818:Animals; D006168:Guinea Pigs; D007545:Isoproterenol / Q000494:pharmacology*; D008722:Methods; D009119:Muscle Contraction; D011433:Propranolol / Q000494:pharmacology*; D013048:Specimen Handling; D013564:Sympathetic Nervous System / Q000502:physiology*; D014132:Trachea / Q000187:drug effects
chemical_list: D011433:Propranolol; D007545:Isoproterenol