Frailty and risk for heart failure in older adults: the health, aging, and body composition study.
Khan H, Kalogeropoulos AP, Georgiopoulou VV, Newman AB, Harris TB, Rodondi N, Bauer DC, Kritchevsky SB, Butler J. Frailty and risk for heart failure in older adults: the health, aging, and body composition study. Am Heart J. 2013 Nov; 166(5):887-94.