title: The development of beta adrenergic blocking drugs: a retrospective and prospective evaluation.
mesh_terms: D000818:Animals; D001808:Blood Vessels / Q000187:drug effects; D055598:Chemical Phenomena; D002621:Chemistry; D004983:Ethanolamines / Q000494:pharmacology; D006321:Heart / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects; D009132:Muscles / Q000187:drug effects; D013565:Sympatholytics / Q000494:pharmacology
chemical_list: D004983:Ethanolamines; D013565:Sympatholytics