the book of parkinson's disease cause and statistics on wooden table. medical or healthcare concept

message paper note design background colorful handwritten wooden office desk business notepad concept text table closeup book sign wood workplace education treatment pathogenesis medication parkinson idiopatic brain affected basal people shaking symptoms system therapy gait nervous ganglia stages dementia pathway dopamine age care diagnosis deep hypokinesia pathology parkinsonism elderly parkinson's disease cause statistics isolated table medical healthcare