Tracy RP, Bovill EG, Fried LP, Heiss G, Lee MH, Polak JF, Psaty BM, Savage PJ. The distribution of coagulation factors VII and VIII and fibrinogen in adults over 65 years. Results from the Cardiovascular Health Study. Ann Epidemiol. 1992  ;2(4):509-19.

Tracy RP, Bovill EG, Yanez D, Psaty BM, Fried LP, Heiss G, Lee M, Polak JF, Savage PJ. Fibrinogen and factor VIII, but not factor VII, are associated with measures of subclinical cardiovascular disease in the elderly. Results from The Cardiovascular Health Study. Arterioscler Thromb Vasc Biol. 1995  ;15(9):1269-79.

Cushman M, Psaty BM, Macy E, Bovill EG, Cornell ES, Kuller LH, Tracy RP. Correlates of thrombin markers in an elderly cohort free of clinical cardiovascular disease. Arterioscler Thromb Vasc Biol. 1996  ;16(9):1163-9.

Feinberg WM, Kronmal RA, Newman AB, Kraut MA, Bovill EG, Cooper L, Hart RG. Stroke risk in an elderly population with atrial fibrillation. J Gen Intern Med. 1999  ;14(1):56-9.