The Inova Center of Outcomes Research, Inova Heart and Vascular Institute, Falls Church, Virginia, USA. Johns Hopkins Older Americans Independence Center and the Center on Aging and Health, Johns Hopkins University, Baltimore, Maryland, USA. Division of Geriatrics and Gerontology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA. The Inova Center of Outcomes Research, Inova Heart and Vascular Institute, Falls Church, Virginia, USA; Division of Geriatric Medicine, Department of Medicine, Inova Heath, Falls Church, Virginia, USA. Johns Hopkins Older Americans Independence Center and the Center on Aging and Health, Johns Hopkins University, Baltimore, Maryland, USA; Division of Geriatrics and Gerontology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA. Geriatric Cardiology Section, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA. Division of Cardiology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA. Johns Hopkins Older Americans Independence Center and the Center on Aging and Health, Johns Hopkins University, Baltimore, Maryland, USA; Division of Cardiology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA. The Inova Center of Outcomes Research, Inova Heart and Vascular Institute, Falls Church, Virginia, USA; Johns Hopkins Older Americans Independence Center and the Center on Aging and Health, Johns Hopkins University, Baltimore, Maryland, USA; Division of Cardiology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA. Electronic address: abdulla.damluji@jhu.edu.