TY - RPRT TI - Relation between contractile reserve and improvement in left ventricular function with beta-blocker therapy in patients with heart failure secondary to ischemic or idiopathic dilated cardiomyopathy. AU - Frank F Seghatol AU - Dipan J Shah AU - Silvia Diluzio AU - David Bello AU - Maryl R Johnson AU - William G Cotts AU - Jenny A O'Donohue AU - Robert O Bonow AU - Mihai Gheorghiade AU - Vera H Rigolin PY - 2004 DO - 10.1016/j.amjcard.2003.12.023 UR - https://pubmed.ncbi.nlm.nih.gov/15050488/ ID - 15050488 ER -