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Aarsland, D., K. Brønnick, U. Ehrt, P P. De Deyn, S. Tekin, M. Emre, und J L. Cummings. Neuropsychiatric Symptoms in Patients With Parkinson's Disease and Dementia: Frequency, Profile and Associated Care Giver Stress. BMJ Group, 2007.

Aarsland, D., et al. Neuropsychiatric Symptoms in Patients With Parkinson's Disease and Dementia: Frequency, Profile and Associated Care Giver Stress. BMJ Group, 2007.