Authors: Anette Schrag; Paolo Barone; Richard G Brown; Albert F G Leentjens; William M McDonald; Sergio Starkstein; Daniel Weintraub; Werner Poewe; Olivier Rascol; Cristina Sampaio; Glenn T Stebbins; Christopher G Goetz Journal: Mov Disord Date: 2007-06-15 Impact factor: 10.338