Erro, Roberto
Marotta, Angela
Tinazzi, Michele
Frera, Elena
Fiorio, Mirta
Article History
Received: 10 July 2017
Accepted: 20 December 2017
First Online: 7 February 2018
Competing Interests
: RE received honoraria from Zambon, TEVA, the International Parkinson’s Disease and Movement Disorders Society. He receives royalties for the publication of “Case Studies in Movement Disorders” (Cambridge University Press, 2017). All other authors have nothing to declare.