Movement Disorders Program, Butler Hospital; and Department of Neurology, Warren Alpert Medical School of Brown University, Providence, RI.

Address correspondence and reprint requests to Joseph H. Friedman, MD, Movement Disorders Program, Butler Hospital, Department of Neurology, Warren Alpert Medical School of Brown University, 345 Blackstone Blvd, Providence, RI 02906; E-mail: [email protected]

Conflicts of Interest and Source of Funding: Karger Press, Cambridge University Press; MedLink—royalties. EPI-Q, Practicing Clinicians Exchange—consulting. Salary support only was provided by the Butler Hospital.