Neuropsychologia · 1994 · 25 citations · 20 references
Life SciencesNeurologyNeuroscienceMotor NeuroscienceMovement DisordersNeurodegenerationMotor DisordersMotor Neuron DiseasesNeurodegenerative DiseasesNeurodegenerative DisordersParkinson DiseaseParkinsonian DisordersMotor PerseverationPerseverative Behavior
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Margaret M. Hoehn, Melvin D. Yahr · Neurology · 1967 · 12K citations · Full text
9/Geriatric Depression Scale (GDS)
Jerome A. Yesavage, Javaid I. Sheikh · Clinical Gerontologist · 1986 · 7.2K citations
COGNITIVE DEFICITS IN THE EARLY STAGES OF PARKINSON'S DISEASE
Andrew J. Lees, Eileen Smith · Brain · 1983 · 798 citations
Medicine, Neurology, Neuroscience +17