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Davide Martino has received consulting honoraria from Ipsen Canada and AbbVie, lecturing honoraria from the Movement Disorders Society and the Canadian Movement Disorders Society, royalties from Oxford University Press, and research grant support from the Weston Family Foundation and the Canadian Institutes of Health Research. Julian Fletcher has no financial interests. Justyna Sarna has received consulting honoraria from AbbVie. Tamara Pringsheim has received research grant support from the Canadian Institutes of Health Research, and the Azrieli Accelerator of the University of Calgary. Non-financial interests: Christelle Nilles is an unpaid member of the Board of the European Society for the Study of Tourette syndrome (ESSTS).","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"This project received ethical approval from the University of Calgary Conjoint Health Research Ethics Board. 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