2Fei L, Keeling PJ, Gill JS, et al. Heart rate variability and its relation to ventricular arrhythmias in congestive heart failure. Br Heart J, 1994,71:322.
3Boveda S, Galinier M, Pathak A, et al. Prognostic value of heart rate variability in time domain analysis in congestive heart failure. J Interv Card Electrophysiol, 2001,5:181.
4Aronson D, Burger AJ. Effect of beta-blockade on autonomic modulation of heart rate and neurohormonal profile in decorpensated heart failure. Ann Noninvasive Electrocardiol, 2001,6:98.
5Davis M. Bisoprolol in chronic heart failure. Hosp Med, 2000, 61:120.
6Podrid PJ, Fogel RI, Fuchs TT. Ventricular arrhythmia in congestive heart failure. Am J Cardiol, 1992;69:82G.
7The International Steering Committee. Rational design and organization of the Metoprolol CR/XL Randomized Intervention Trial in Heart Failure (MERIT-HF). Am J Cardiol, 1997,80:54J.
8Grimm W, Maisch B. Sudden cardiac death in dilated cardiomyopathy--therapeutic options. Hers, 2002,27: 750.
9Meghani SH, Becker D. Beta-blockers: a new therapy in congestive heart failure. AM J Crit Care, 2001,10:417;quiz:428.