Text and Data Mining valid from 2018-05-09
Received: 9 November 2017
Revised: 5 February 2018
Accepted: 6 March 2018
First Online: 9 May 2018
Compliance with ethical standards
: M. Filippi is Editor-in-Chief of the <i>Journal of Neurology</i>; has received compensation for consulting services and/or speaking activities from Biogen Idec, ExceMED, Novartis, and Teva Pharmaceutical Industries; and receives research support from Biogen Idec, Teva Pharmaceutical Industries, Novartis, Italian Ministry of Health, Fondazione Italiana Sclerosi Multipla, Cure PSP, Alzheimer’s Drug Discovery Foundation (ADDF), the Jacques and Gloria Gossweiler Foundation (Switzerland), and ARiSLA (Fondazione Italiana di Ricerca per la SLA). E. Canu has received research supports from the Italian Ministry of Health. G. Comi has received consulting fees for participating on advisory boards from Novartis, Teva Pharmaceutical Ind. Ltd, Sanofi, Genzyme, Merck Serono, Bayer, Actelion and honorarium for speaking activities for Novartis, Teva Pharmaceutical Ind. Ltd, Sanofi, Genzyme, Merck Serono, Bayer, Biogen, ExceMED. F. Agosta is Section Editor of <i>NeuroImage: Clinical</i>; has received speaker honoraria from Biogen Idec, Novartis, and ExceMED—Excellence in Medical Education; and receives or has received research supports from the Italian Ministry of Health, AriSLA (Fondazione Italiana di Ricerca per la SLA), and the European Research Council. The remaining authors declare that they have no conflicts of interests.