title: Effects of beta adrenergic blockade on heart size.
mesh_terms: D000328:Adult; D002302:Cardiac Output / Q000187:drug effects; D004562:Electrocardiography; D004983:Ethanolamines / Q000494:pharmacology*; D005080:Exercise Test; D006321:Heart / Q000187:drug effects*; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D011433:Propranolol / Q000494:pharmacology
chemical_list: D004983:Ethanolamines; D011433:Propranolol