aDepartment of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
bDepartment of Neurobiology, Duke University, Durham, NC, USA
cDepartment of Medicine (Neurology), University of British Columbia (UBC), M31, Purdy Pavilion, 2221 Wesbrook Mall, Vancouver, BC, Canada V6T 2B5
dPacific Parkinson's Research Centre, University of British Columbia, Vancouver, BC, Canada
*Corresponding author. Address: Department of Medicine (Neurology), University of British Columbia (UBC), M31, Purdy Pavilion, 2221 Wesbrook Mall, Vancouver, BC, Canada V6T 2B5. Tel.: +1 604 822 7516; fax: +1 604 822 7866.
E-mail: [email protected]
Submitted March 10, 2004; revised September 13, 2004; accepted October 11, 2004.
