2 Institut de Neurosciences de la Timone, UMR7289, CNRS and Aix-Marseille Univ, Marseille, France; APHM, Aix-Marseille Univ, Department of Neurology and Movement Disorders, CHU Timone, Marseille, France.
3 IRCCS Neuromed Institute, Pozzilli, IS, Italy; Department of Human Neurosciences, Sapienza University of Rome, Italy. Electronic address: antonio.suppa@uniroma1.it.