Parkinson's disease is a progressive disorder of the nervous system that affects movement. It develops gradually, sometimes starting with a barely noticeable tremor in just one hand. But while a tremor may be the most well-known sign of Parkinson's disease, the disorder also commonly causes stiffness or slowing of movement.

1. Brain Analysis:
Day to Day
Neurobiology
BY: MANUEL JOSÉ CEDEÑO CASTILLO
DECEMBER 2017
PROFESSOR: PEGGY MASON. PHD
FROM HARVARD UNIVERSITY

23. BIBLIOGRAPHY
 Professor J Jankovic, Department of Neurology.
(2017). Parkinson’s disease: clinical features and
diagnosis. 2017, de Department of Neurology,
Parkinson’s Disease Center and Movement
Disorders Clinic, Baylor College of Medicine, Sitio
web:
http://jnnp.bmj.com/content/jnnp/79/4/368.full.p
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