Akbar, U., McQueen, R. B., Bemski, J., Carter, J., Goy, E. R., Kutner, J., Johnson, M. J., Miyasaki, J. M., & Kluger, B. (2021). Prognostic predictors relevant to end-of-life palliative care in Parkinson's disease and related disorders: A systematic review. Journal of Neurology, Neurosurgery and Psychiatry, 92(6), 629-636. https://doi.org/10.1136/jnnp-2020-323939