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MEDLINEplus National Library of Medicine
National Institute of Neurological Disorders and Stroke
American Parkinson's Disease Association
www.apdaparkinson.org
National Parkinson's Foundation, Inc.
www.parkinson.org
Parkinson's Foundation of Canada
www.parkinson.ca
Parkinson's Disease Foundation
www.pdf.org
Parkinson's Action Network
www.parkinsonsaction.org
Parkinson's Disease Research Web
www.ninds.nih.gov/
Michael J. Fox Foundation
www.michaeljfox.org
Worldwide Education and Awareness for Movement Disorders
www.wemove.org