About the Authors

Galit Kleiner-Fisman

gkleinerfisman@yahoo.com

Affiliations Jeff and Diane Ross Movement Disorders Clinic, Assistive Technology Clinic, Toronto, Canada, Baycrest Center for Geriatric Health, University of Toronto, Toronto, Canada, Department of Medicine, Division of Neurology, University of Toronto, Toronto, Canada

Edwin Khoo

Affiliation Dalla Lana School of Public Health, University of Toronto, Toronto, Canada

Nikohl Moncrieffe

Affiliation Jeff and Diane Ross Movement Disorders Clinic, Assistive Technology Clinic, Toronto, Canada

Triina Forbell

Affiliation Jeff and Diane Ross Movement Disorders Clinic, Assistive Technology Clinic, Toronto, Canada

Pearl Gryfe

Affiliation Jeff and Diane Ross Movement Disorders Clinic, Assistive Technology Clinic, Toronto, Canada

David Fisman

Affiliation Dalla Lana School of Public Health, University of Toronto, Toronto, Canada

Competing Interests

The principal investigator has received consulting honoraria from Merz Pharmaceuticals GmbH. None of the other authors have a conflict of interest, financial or otherwise. This does not alter the authors’ adherence to all PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: GFK DF PG. Performed the experiments: GFK NM TF. Analyzed the data: EK DF. Contributed to the writing of the manuscript: GFK EK NM TF PG DF.