Association of QRS duration with left ventricular structure and function and risk of heart failure in middle-aged and older adults: the Multi-Ethnic Study of Atherosclerosis (MESA).
Ilkhanoff L, Liu K, Ning H, Nazarian S, Bluemke DA, Soliman EZ, Lloyd-Jones DM. Association of QRS duration with left ventricular structure and function and risk of heart failure in middle-aged and older adults: the Multi-Ethnic Study of Atherosclerosis (MESA). Eur J Heart Fail. 2012 Nov; 14(11):1285-92.