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Clinical Trials Update | 
Anita Slomski
JAMA. 2014;312(8):778. doi:10.1001/jama.2014.10043.

Medical News & Perspectives | 
M. J. Friedrich
JAMA. 2014;312(1):16-18. doi:10.1001/jama.2014.7450.

Clinical Trials Update | 
Anita Slomski
JAMA. 2014;311(20):2056. doi:10.1001/jama.2014.5901.

Preliminary Communication |  FREE
Rashmi Singh, PhD; Timothy B. Meier, PhD; Rayus Kuplicki, MS; et al.
JAMA. 2014;311(18):1883-1888. doi:10.1001/jama.2014.3313.
Includes: Supplemental Content

Review |  FREE
Barbara S. Connolly, MD; Anthony E. Lang, MD
JAMA. 2014;311(16):1670-1683. doi:10.1001/jama.2014.3654.
Includes: CME, Supplemental Content

Editorial | 
Gary W. Small, MD
JAMA. 2014;311(7):677-678. doi:10.1001/jama.2014.94.

Original Investigation |  FREE
Anton P. Porsteinsson, MD; Lea T. Drye, PhD; Bruce G. Pollock, MD, PhD; et al.
JAMA. 2014;311(7):682-691. doi:10.1001/jama.2014.93.
Includes: Supplemental Content

Global Health | 
M. J. Friedrich
JAMA. 2014;311(7):666. doi:10.1001/jama.2014.1053.

Clinical Trials Update | 
Anita Slomski
JAMA. 2014;311(4):349. doi:10.1001/jama.2014.60.

news@JAMA | 
JAMA. 2014;311(1):18. doi:10.1001/jama.2013.285149.

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JAMA Neurology
Original Investigation  | 
Frequency of Cholinergic and Caudate Nucleus Dopaminergic Deficits Across the Predemented Cognitive Spectrum of Parkinson Disease and Evidence of Interaction Effects
Nicolaas I. Bohnen, MD, PhD; Roger L. Albin, MD; Martijn L. T. M. Müller, PhD; et al.
JAMA Neurology
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Evolution of Prodromal Clinical Markers of Parkinson Disease in a GBA Mutation–Positive Cohort
Michelle Beavan, MRCP(UK); Alisdair McNeill, PhD, MRCP(UK); Christos Proukakis, PhD, FRCP; et al.
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Trey Hedden, PhD; John H. Growdon, MD
JAMA Neurology
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Association of 3.0-T Brain Magnetic Resonance Imaging Biomarkers With Cognitive Function in the Dallas Heart Study
Mohit Gupta, MD; Kevin S. King, MD; Rajiv Srinivasa, MD; et al.