Lloyd-Jones D, Adams R, Carnethon M, et al. Heart disease and stroke statistics-2009 update: A report from the American Heart Association Statistics Committee and Stroke Statistics Subcommittee. Circulation 2009; 119(3): e21-e181.
O’Connell JB, Bristow MR. Economic impact of heart failure in the United States: Time for a different approach. J Heart Lung Transplant 1994; 13: 107-2.
Croft JB, Giles WH, Pollard RA, et al. Heart failure survival among older adults in the United States: a poor prognosis for an emerging epidemic in the Medicare population. Arch Intern Med 1999; 159(5): 505-10.