Hi @laurievr

I found some information on the Cleveland Clinic website about Parkinsonism. Here is a link to that website information
-Parkinsonism
https://my.clevelandclinic.org/health/diseases/22815-parkinsonism
On Connect, there is another discussion on this topic. Here is a link for you to read.
https://connect.mayoclinic.org/discussion/parkinsonism/
Here is some additional information:

Parkinson's is caused mainly by the degeneration of nerve cells in the brain, while the causes of parkinsonism are numerous, ranging from the side effects of medications to chronic head traumas to metabolic diseases to toxins to neurological diseases. Jun 29, 2021"
--- Parkinson's vs. Parkinsonism - Davis Phinney Foundation: https://davisphinneyfoundation.org/parkinsons-vs-parkinsonism/

Types of Parkinsonisms: https://www.parkinson.org/Understanding-Parkinsons/What-is-Parkinsons/Types-of-Parkinsonisms