Name Info Provider Link
Parkinson's Disease free resource MedlinePlus Health Information https://medlineplus.gov/parkinsonsdisease.html
Cited by Patents in free resource The Lens - Patent Citations https://www.lens.org/lens/search/patent/list?q=citation_id:2123623
subscription/membership/fee required Silverchair Information Systems https://jamanetwork.com/journals/jamaneurology/fullarticle/vol/47/pg/1290