Longstreth WT, Shemanski L, Lefkowitz D, O'Leary DH, Polak JF, Wolfson SK. Asymptomatic internal carotid artery stenosis defined by ultrasound and the risk of subsequent stroke in the elderly. The Cardiovascular Health Study. Stroke. 1998  ;29(11):2371-6.

Polak JF, Shemanski L, O'Leary DH, Lefkowitz D, Price TR, Savage PJ, Brant WE, Reid C. Hypoechoic plaque at US of the carotid artery: an independent risk factor for incident stroke in adults aged 65 years or older. Cardiovascular Health Study. Radiology. 1998  ;208(3):649-54.

Newman AB, Spiekerman CF, Enright P, Lefkowitz D, Manolio T, Reynolds CF, Robbins J. Daytime sleepiness predicts mortality and cardiovascular disease in older adults. The Cardiovascular Health Study Research Group. J Am Geriatr Soc. 2000  ;48(2):115-23.

Longstreth WT, Diehr P, Manolio TA, Beauchamp NJ, Jungreis CA, Lefkowitz D. Cluster analysis and patterns of findings on cranial magnetic resonance imaging of the elderly: the Cardiovascular Health Study. Arch Neurol. 2001  ;58(4):635-40.

Kaplan RC, Tirschwell DL, Longstreth WT, Manolio TA, Heckbert SR, Lefkowitz D, El-Saed A, Psaty BM. Vascular events, mortality, and preventive therapy following ischemic stroke in the elderly. Neurology. 2005  ;65(6):835-42.