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Delaram Safarpour has received compensation for advisory board participation from Abbvie and Boston Scientific; consultation fees from Abbott; and institutional grant support from the Parkinson Study Group. Ronald F. Pfeiffer is a member of the Data Safety Monitoring Board of Enterin Inc; Programmatic Panel Member of the Neurotoxin Exposure Treatment Parkinson\u2019s Program, Congressionally Directed Medical Research Programs, Department of Defense; and receives royalties for books edited from CRC Press and Humana Press; podcast participation for Acorda; legal consulting for Henry & Beaver, LLP.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflicts of interest"}},{"value":"All authors contributed equally to the literature search, and manuscript writing and editing.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Author contributions"}},{"value":"Not applicable.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Availability of data and material"}},{"value":"Not applicable.","order":6,"name":"Ethics","group":{"name":"EthicsHeading","label":"Code availability"}},{"value":"Not applicable.","order":7,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}},{"value":"Not applicable.","order":8,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"Not applicable.","order":9,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}}]}}