| parkinsonalliance.net | The Parkinson Alliance |
| apdaparkinson.com | The American Parkinson's Disease Association Inc |
| grassrootsconnection.com | Parkinson Grassroots Neurological Advocacy Online |
| indigo.ie | PALS Support Group (Ireland) |
| parkinson.ca | Research | Parkinson Society Canada |
| nfcacares.org | National Family Caregivers Association (NFCA) |
| plwp.org | People Living With Parkinson's (PLWP) |
| pdf.org | Parkinson s Disease Foundation (PDF) |
| parkinsonsmi.org | Michigan Parkinson Foundation |
| parkinsonsinstitute.org | The Parkinson's Institute |
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