Aged 1 Article 1 Cerebellum 1 Diagnosis, Differential 1 Essential Tremor 1 Female 1 Humans 1 Magnetic Resonance Imaging 1 Male 1 Middle Aged 1 Neuroimaging 1 Parkinson Disease 1 Parkinson disease 1 Parkinson's disease 1 adult 1 aged 1 anatomical concepts 1 cerebellar analysis 1 cerebellar peduncle 1 cerebellum 1 cerebellum cortex 1 cerebellum vermis 1 controlled study 1 dentate nucleus 1 diagnostic imaging 1 differential diagnosis 1 essential tremor 1 essential tremors female 1 gray matter 1