A Proposal for a Comprehensive Grading of Parkinson's Disease Severity Combining Motor and Non-Motor Assessments: Meeting an Unmet Need

• Kallol Ray Chaudhuri,

  Affiliation National Parkinson Foundation Centre of Excellence, Kings College Hospital and Kings College, and University Hospital Lewisham, London, United Kingdom

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• Jose Manuel Rojo,

  Affiliation Department of Statistics, Centre of Human and Social Sciences, Spanish Council for Scientific Research, Madrid, Spain

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• Anthony H. V. Schapira,

  Affiliation Institute of Neurology, University College London, London, United Kingdom

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• David J. Brooks,

  Affiliation Department of Medicine, Imperial College London, London, United Kingdom

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• Fabrizio Stocchi,

  Affiliation Department of Neurology, IRCCS San Raffaele, Rome, Italy

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• Per Odin,

  Affiliation Department of Neurology, Lund University Hospital, Lund, Sweden

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• Angelo Antonini,

  Affiliation Department for Parkinson's Disease, IRCCS San Camillo, Venice, Italy

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• Richard J. Brown,

  Affiliation Department of Psychology, Institute of Psychiatry, Kings College London, London, United Kingdom

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• Pablo Martinez-Martin

  * E-mail: pmartinez@isciii.es

  Affiliation Alzheimer Disease Research Unit and CIBERNED, CIEN Foundation, Carlos III Institute of Health, Alzheimer Centre Reina Sofia Foundation, Madrid, Spain

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