The QT interval is associated with incident cardiovascular events: the MESA study.
Beinart R, Zhang Y, Lima JA, Bluemke DA, Soliman EZ, Heckbert SR, Post WS, Guallar E, Nazarian S. The QT interval is associated with incident cardiovascular events: the MESA study. J Am Coll Cardiol. 2014 Nov 18-25; 64(20):2111-9.