[1] GB Bietti Fdn, IRCCS, Dept Neurophysiol Vis & Neurophthalmol, Via Livenza 3, I-00198 Rome, Italy
[2] Don Carlo Gnocchi Onlus Fdn, Melzo, MI, Italy
[3] Sapienza Univ Rome Polo Pontino, Dept Medicosurg Sci & Biotechnol, Rome, Italy
[4] Univ Liege, Headache Res Unit, Univ Dept Neurol, B-4000 Liege, Belgium
[5] IRCCS Neuromed, Pozzilli, IS, Italy