D. D. Truong (*) & The Parkinson’s and Movement Disorder Institute, 9940 Talbert Avenue, Fountain Valley, California 92708, USA
e-mail: dtruong@pmdi.org
S. M. Gollomp Division of Neurology, Lankenau Hospital, Wynnewood, PA, USA
J. Jankovic The Parkinson’s Disease and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, TX,
USA
P. A. LeWitt Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
M. Marx & A. Hanschmann Merz Pharmaceuticals GmbH, Frankfurt am Main, Germany
H. H. Fernandez Movement Disorders, Center for Neurological Restoration, Cleveland Clinic, Cleveland, OH, USA