The accuracy of the Unified Parkinson's Disease Rating Scale (UPDRS-Section 1) as a screening measure for depression

McKinlay, A., Grace, R. C., Dalrymple-Alford, J. C., Anderson, T., Fink, J., & Roger, D. (2008, March). The accuracy of the Unified Parkinson’s Disease Rating Scale (UPDRS-Section 1) as a screening measure for depression. Parkinsonism and Related Disorders. https://doi.org/10.1016/j.parkreldis.2007.03.002