There's more in the link below. - Granny

Marijuana Compounds May Aid Parkinson's Disease
cannabisnews.com: Marijuana Compounds May Aid Parkinson's Disease

Marijuana-Like Chemicals Helps Treat Parkinson's
cannabisnews.com: Marijuana-Like Chemicals Helps Treat Parkinson's

Cannabis use in Parkinson's disease: subjective improvement of motor symptoms.
Clinical Studies and Case Reports

Cannabinoids reduce levodopa-induced dyskinesia in Parkinson's disease
Clinical Studies and Case Reports