1. Scientists Zero in on Brain's 'Stopwatch' - US News and World Report
Timing mechanisms in brain cells may hold clues for Parkinson's treatment, researchers say

2. Gene Behind Gaucher Disease a Player in Parkinson's - US News and World Report
Finding from worldwide study could one day lead to new treatments

3. Parkinson's disease : Causes, incidence, and risk factors  (Trust Mark: Doctor-Reviewed)
Parkinson's disease was first described in England in 1817 by Dr. James Parkinson. The disease most often develops after age 50. It is one of the most common nervous system disorders of the elderly. Sometimes Parkinson's disease occurs in younger ...• Reviewer: Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard Medical School, Department of Neurology, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

4. Parkinson's Disease  (Trust Mark: Doctor-Reviewed)
Parkinson's disease (PD) is a progressive movement disorder marked by tremors, rigidity, slow movements (bradykinesia), and postural instability. It occurs when, for unknown reasons, cells in one of the movement-control centers of the brain begin ...• Author: L. Fleming Fallon Jr., MD, DrPH