Narrow QRS Duration Predicts Improvement of Left Ventricular Systolic Function by Beta-blockers in Chronic Heart Failure
2012 ◽
Vol 109
(3)
◽
pp. 383-389
◽
2015 ◽
Vol 20
(3)
◽
pp. 113-119
2011 ◽
Vol 57
(14)
◽
pp. E685