http://neurosurgery.mgh.harvard.edu/fnctnlhp.html
This page presents some of the resources available at the Massachusetts General Hospital Neurosurgical Service. Biographical and contact information about the staff of neurosurgeons is available, including a list of specialists in Parkinson's Disease, chronic pain syndromes, and medically refractory psychiatric diseases. In addition, users can access files about Parkinson's disease, such the Hoehn and Yahr severity test and articles about pallidotomy. Additional links to outside resources related to Parkinson's Disease and neurosurgery are also available on this page.