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Research paper
Baseline prevalence and longitudinal evolution of non-motor symptoms in early Parkinson’s disease: the PPMI cohort

Authors

  1. Correspondence to Dr Tanya Simuni, Department of Neurology Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; tatyana.simuni{at}nm.org
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Citation

Simuni T, Caspell-Garcia C, Coffey CS, et al
Baseline prevalence and longitudinal evolution of non-motor symptoms in early Parkinson’s disease: the PPMI cohort

Publication history

  • Received 7 April 2017
  • Revised 18 July 2017
  • Accepted 23 August 2017
  • Published in print 5 October 2017.
  • Published online 6 October 2017.

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