Purple Haze of Parkinson’s: How Dopamine Works
http://www.personalhealthnews.ca/education-and-advocacy/beyond-the-tremors-the-other-challenges-of-living-with-parkinsons-disease
https://www.mayoclinic.org/diseases-conditions/parkinsons-disease/diagnosis-treatment/drc-20376062
https://www.medicalnewstoday.com/articles/320560.php
https://parkinson.org/understanding-parkinsons/what-is-parkinsons
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4517533/
https://www.healthline.com/health/parkinsons/is-parkinsons-hereditary#what-the-research-says