Prevalence, predictors, and emerging biomarkers for cognitive impairment and neuropsychiatric manifestations in Parkinson's disease in Africa: A systematic review
Background Cognitive impairment and neuropsychiatric manifestations are common disabling non-motor symptoms that can negatively impact quality of life in Parkinson's disease. This review aimed to critically appraise and synthesize evidence on the prevalence, predictors, and emerging biomarkers of cognitive impairment a...