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Percent of dollars spent on our mission

PDF is committed to using your funds efficiently to support our mission. To see how your funds are spent, visit our financial information page.

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Parkinson's ExpertBriefings logo, learn from leaders in Parkinson's research and care by watching these educational sessions online or calling a toll-free number

More than 30 online seminars are now available for you to view! Topics include: nutrition, legal issues, nonmotor symptoms, medications in the pipeline and more. 

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Featured Creativity and Parkinson's Artist

Bruce Florence

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The PDF Tulip

You may have noticed that PDF uses an image of a tulip throughout our website, our publications and other materials.  This is because the tulip is the official symbol within the Parkinson's community.

The tulip was first recognized as a symbol for Parkinson’s in 1980.  At that time, a Dutch horticulturalist named J.W.S. Van der Wereld decided to honor Dr. James Parkinson, the first person to describe Parkinson's in 1817, by naming a tulip after him.  It thus became a symbol for Parkinson’s.

PDF specifically uses a yellow tulip to denote optimism and hope.  The three petals are used to denote our three-pronged mission: Hope through research, education and advocacy.