title: Letter: Beta-blocking agents and platelet aggregation.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000494:pharmacology*; D006801:Humans; D010973:Platelet Adhesiveness / Q000187:drug effects*; D011433:Propranolol / Q000494:pharmacology*
chemical_list: D000319:Adrenergic beta-Antagonists; D011433:Propranolol