Vascular and neurodegenerative contributions to cognitive decline and multidomain progression in de novo Parkinsons disease
INTRODUCTION: Cognitive decline in Parkinsons disease (PD) may reflect interacting neurodegenerative and cerebrovascular processes, but their distinct temporal contributions remain unclear. METHODS: Newly diagnosed, untreated PD participants from the PPMI who were cognitively normal at baseline and had at least three y...