Updates are available Correction dated 2020-02-19

Article History

Received: 2 July 2018

Accepted: 14 January 2019

First Online: 27 February 2019

Change Date: 19 February 2020

Change Type: Correction

Change Details: An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Competing Interests

: The authors have no financial disclosures or potential conflicts of interest in relation to this academic study. The indicated authors take responsibility for data collection and analysis. The principal investigator (DD), who had full access to all the study data, takes full responsibility for submitting the final work for publication. Caroline Moreau has received grants from the France Parkinson charity as well as various honoraria from pharmaceutical companies for consultancy and lectures on Parkinson’s disease. Anne Sophie Rolland, Véronique Danel-Brunaud, Jean-Christophe Devedjian, Mary Dutheil, Charlotte Veyrat-Durebex, Alain Duhamel, Maeva Kyheng, Hélène Blasco, Guillaume Garçon, Patrick Gelé, Timothée Lenglet, Patrick Oeckl, Régis Bordet, Vincent Meininger and James Duce have nothing to declare. Philippe Corcia served on the advisory board and received honoraria from Roche for consultancy and grants from the ARSLA charity. Pierre François Pradat has received grants from the ARSLA charity, the <i>Association Française contre les Myopathies-Téléthon</i> (AFM-Téléthon), the <i>Institut pour la Recherche sur la Moelle épinière et l’Encéphale</i> (IRME), the Thierry Latran Fondation and the Target ALS Fondation. Markus Otto received grants from the EU (Fairpark-II), German Ministry of Science and Technology (KNDD-FTLDc), Thierry Latran foundation, ALS foundation, Foundation of the state Baden-Wuerttemberg and the German science foundation. He has served as advisor for Axon, Biogen and given lectures for Lilly, Fujirebio and Teva. Andreas Jeromin is employed by Quanterix, Lexington, Massachusetts, USA Peter Bede is supported by the Health Research Board (HRB – Ireland; HRB EIA-2017–019), the Irish Institute of Clinical Neuroscience IICN − Novartis Ireland Research Grant, and the Iris O’Brien Foundation Ireland. David Devos has received grants from the French Ministry of Health (PHRC), the French Ministry of Research (ANR), the European Commission (H2020), the ARSLA charity and the France Parkinson charity. He served on advisory boards, as a consultant and given lectures on behalf of pharmaceutical companies such as Orkyn, Boston Scientific, Abbvie and ApoPharma.