title: Parkinsonism and subjective visual impairment: an overview of a poorly understood area.
authors.forename: Andrew
authors.initials: A
authors.lastname: Churchyard
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D019578:Multiple System Atrophy / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology; D020734:Parkinsonian Disorders / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D013494:Supranuclear Palsy, Progressive / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology; D014786:Vision Disorders / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology / Q000517:prevention & control