Testing objective measures of motor impairment in early Parkinson's disease: Feasibility study of an at-home testing device

Christipher G. Goetz, Glenn T. Stebbins, David Wolff, William DeLeeuw, Helen Bronte-Stewart, Rodger Elble, Mark Hallett, John Nutt, Lorraine Ramig, Terence Sanger, Allan D. Wu, Peter H. Kraus, Lucia M. Blasucci, Ejaz A. Shamim, Kapil D. Sethi, Jennifer Spielman, Ken Kubota, Andrew S. Grove, Eric Dishman, C. Barr Taylor