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GENETIC-AF * A Genotype-Directed Comparative Effectiveness Trial of Bucindolol and Toprol-XL for Prevention of Symptomatic Atrial Fibrillation/Atrial Flutter in Patients with Heart Failure

The primary objective of this study is to compare the effects of bucindolol and metoprolol onthe recurrence of symptomatic AF/AFL in patients with HFREF who have a *1389 arginine homozygous(*1389Arg/Arg) genotype.The secondary objectives of this…