Epidemiology of Parkinson’s Disease

What is the prevalence of the disease in different countries; are there particular groups who are more susceptible to this disease? The title should include the disease state and the specific aspect that you are investigating.

There should be a short introduction to the disease state itself at the beginning with a brief statement regarding which aspect you will focus on. (Within your given topic – Epidemiology)

You should provide a succinct, scientific summary of the information that you have found using a wide range of relevant references.