title: [Length of effect of beta-blockers in hyperkinetic heart syndrome].
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D000328:Adult; D001262:Atenolol / Q000627:therapeutic use; D005260:Female; D006801:Humans; D008297:Male; D008790:Metoprolol / Q000627:therapeutic use; D008875:Middle Aged; D009449:Neurocirculatory Asthenia / Q000188:drug therapy*; D011897:Random Allocation; D013997:Time Factors
chemical_list: D000319:Adrenergic beta-Antagonists; D001262:Atenolol; D008790:Metoprolol
vernacular_title: Wirkdauer von beta-Blockern beim hyperkinetischen Herzsyndrom.