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Marcus Richards, PhD; Karen Marder, MD, MPH; Karen Bell, MD; George Dooneief, MD; Richard Mayeux, MD; Yaakov Stern, PhD

Arch Neurol. 1991;48(11):1147-1149.

Abstract
• Extrapyramidal signs were rated by three neurologists in 20 patients who had either been diagnosed as having probable Alzheimer's disease or who were being evaluated for dementia. In general, good inter-rater reliability was found for the presence or absence of extrapyramidal signs, although agreement over the presence of some signs was reduced when distinctions between normality and slight departures from normality were required.

Author Affiliations
From the Departments of Neurology (Drs Richards, Marder, Bell, Dooneief, Mayeux, and Stern) and Psychiatry (Drs Mayeux and Stern), Columbia University, College of Physicians and Surgeons and the New York State Psychiatric Institute Memory Disorders Clinic, New York, NY.

Footnotes
Accepted for publication June 19, 1991.

Reprint requests to the Neurological Institute, 710 W 168th St, New York, NY 10032 (Dr Stern).

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