title: Influence of N-alkyl substitution on antagonism at   1 - and   2 -receptor sites.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000008:administration & dosage / Q000494:pharmacology*; D000478:Alkylation; D004305:Dose-Response Relationship, Drug; D006325:Heart Atria / Q000187:drug effects; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000494:pharmacology; D013329:Structure-Activity Relationship; D014132:Trachea / Q000187:drug effects
chemical_list: D000319:Adrenergic beta-Antagonists; D007545:Isoproterenol