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Comment & Response
December 2017

Observations on a 2-Step Approach to Screening for Parkinson Disease

Author Affiliations
  • 1Preventive Neurology Unit, Wolfson Institute of Preventive Medicine, Queen Mary University of London, Charterhouse Square, London, England
  • 2Reta Lila Weston Institute, UCL Institute of Neurology, London, England
JAMA Neurol. 2017;74(12):1506. doi:10.1001/jamaneurol.2017.3202

To the Editor We read with interest the report from Jennings et al.1 The study showed that, among hyposmic individuals, a dopamine transporter (DAT) deficit at baseline identified those with a high relative risk of conversion to clinical Parkinson disease (PD) after 4 years of follow-up.1