N Engl J Med. 2009 Oct 1;361[14]:1329-38 - nejm.org

BYWWW.NEJM.ORG
July 13, 2017

During a 4.5-year period, we enrolled and followed 1820 patients with ischemic or nonischemic cardiomyopathy, an ejection fraction of 30% or less, a QRS duration of ...