1. American Heart Association. 1999 Heart and Stroke Statistical Update. Dallas, TX: American Heart Association.
2. CDC/NCHS and the American Heart Association. National Health and Nutrition Examination Survey III (NHANES III), 1988–1994
3. Cardiac valve replacement in elderly patients;Jamieson;CMAJ,1980
4. Functional capacity after cardiac surgery in elderly patients;Jaeger;J Am Coll Cardiol,1994
5. Aging;Greengross;BMJ,1997