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Perspective | 
Jonathan McDonagh
JAMA Intern Med. 2014;174(12):1889. doi:10.1001/jamainternmed.2014.5376.

Research Letter | 
Nicole R. Fowler, PhD, MHSA; Kim G. Johnson, MD; Jie Li, MS; et al.
JAMA Intern Med. 2014;174(9):1514-1516. doi:10.1001/jamainternmed.2014.3450.

Research Letter | 
Tara Lagu, MD, MPH; Marya D. Zilberberg, MD, MPH; Jennifer Tjia, MD, MSCE; et al.
JAMA Intern Med. 2014;174(6):999-1001. doi:10.1001/jamainternmed.2014.1179.

Invited Commentary | 
Carole Dufouil, PhD; Carol Brayne, MD
JAMA Intern Med. 2014;174(3):333-335. doi:10.1001/jamainternmed.2013.7674.

Original Investigation | 
Jeff D. Williamson, MD, MHS; Lenore J. Launer, PhD; R. Nick Bryan, MD; et al.
JAMA Intern Med. 2014;174(3):324-333. doi:10.1001/jamainternmed.2013.13656.
Includes: Supplemental Content

Original Investigation |  FREE
Peter Nordström, PhD; Anna Nordström, PhD; Marie Eriksson, PhD; et al.
JAMA Intern Med. 2013;173(17):1612-1618. doi:10.1001/jamainternmed.2013.9079.
Includes: Supplemental Content

Viewpoint | 
Steven H. Horowitz, MD
JAMA Intern Med. 2013;173(16):1493-1494. doi:10.1001/jamainternmed.2013.8409.

Invited Commentary | 
Francine Grodstein, ScD
JAMA Intern Med. 2013;173(15):1437-1438. doi:10.1001/jamainternmed.2013.6827.

Original Investigation |  FREE
Mark A. Espeland, PhD; Sally A. Shumaker, PhD; Iris Leng, PhD, MD; et al.
JAMA Intern Med. 2013;173(15):1429-1436. doi:10.1001/jamainternmed.2013.7727.

Original Investigation |  FREE
Kristine Yaffe, MD; Cherie M. Falvey, MPH; Nathan Hamilton, MA; et al.
JAMA Intern Med. 2013;173(14):1300-1306. doi:10.1001/jamainternmed.2013.6176.

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Frequency of Cholinergic and Caudate Nucleus Dopaminergic Deficits Across the Predemented Cognitive Spectrum of Parkinson Disease and Evidence of Interaction Effects
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