1. Global, regional, and national burden of Parkinson’s disease, 1990–2016: A systematic analysis for the global burden of disease study 2016;Dorsey;Lancet Neurol.,2018
2. Motor symptoms in Parkinson’s disease: A unified framework;Moustafa;Neurosci. Biobehav. Rev.,2016
3. Medical management of Parkinson’s disease;Goldenberg;Pharm. Ther.,2008
4. Movement Disorder Society-sponsored revision of the Unified Parkinson’s Disease Rating Scale (MDS-UPDRS): scale presentation and clinimetric testing results;Goetz;Mov. Disord.: Off. J. Mov. Disord. Soc.,2008
5. Parkinsonism: onset, progression, and mortality;Hoehn;Neurology,1998