title: Beta-blockade in the elderly.
authors.forename: A
authors.initials: A
authors.lastname: van Zyl
authors.forename: L H
authors.initials: LH
authors.lastname: Opie
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000097:blood / Q000627:therapeutic use*; D000367:Age Factors; D000368:Aged; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D012907:Smoking
chemical_list: D000319:Adrenergic beta-Antagonists