Sustained restoration of autonomic balance with long- but not short-acting metoprolol in patients with heart failure.
Aquilante CL, Terra SG, Schofield RS, Pauly DF, Hatton PS, Binkley PF, Johnson JA. Sustained restoration of autonomic balance with long- but not short-acting metoprolol in patients with heart failure. J Card Fail. 2006 Apr; 12(3):171-6.