Risk factors for adverse outcomes by left ventricular ejection fraction in a contemporary heart failure population.
Allen LA, Magid DJ, Gurwitz JH, Smith DH, Goldberg RJ, Saczynski J, Thorp ML, Hsu G, Sung SH, Go AS. Risk factors for adverse outcomes by left ventricular ejection fraction in a contemporary heart failure population. Circ Heart Fail. 2013 Jul; 6(4):635-46.