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Impact of Obstructive Sleep Apnea on Cognitive and Motor Functions in Parkinson's Disease

Parkinson's disease (PD) is a chronic neurodegenerative disorder that presents with motor and non‐motor manifestations. Amongst the non‐motor features, various forms of sleep disturbances can occur, and obstructive sleep apnea (OSA) is considered to be a common comorbidity. We conducted this systematic review and meta‐analysis to assess the impact of OSA on cognitive and motor functions in PD.