Shah AM, Claggett B, Kitzman D, Biering-Sørensen T, Jensen JS, Cheng S, Matsushita K, Konety S, Folsom AR, Mosley TH, Wright JD, Heiss G, Solomon SD. Contemporary Assessment of Left Ventricular Diastolic Function in Older Adults: The Atherosclerosis Risk in Communities Study. Circulation. 2017 01 31; 135(5):426-439.