Fahn S, Elton RL, UPDRS Program Members. Unified Parkinson’s disease rating scale. In: Fahn S, Marsden CD, Goldstein M, et al, editors. Recent developments in Parkinson’s disease. NJ: Florham Park; 1987. Vol 2. p.153-63, 293-304.
Deuschl G. Fitting the scientific tools of our speciality: The new Movement Disorder Society Unified Parkinson’s Disease Rating Scale. Mov Dis 2008; 23: 2109-10.
Movement Disorders Society Task Force on Rating Scales for Parkinson’s Disease. The Unified Parkinson’s Disease Rating Scale (UPDRS): Status and recommendations. Mov Dis 2003; 18: 738-50.
Goetz CG, Tilley BC, Shaftmen SR, et al. Movement Disorder Society-sponsored revision of the Unified Parkinson’s Disease Rating Scale (MDS-UPDRS): Scale presentation and clinimetric testing results. Mov Dis 2008; 23: 2129-70.