La Sapienza University of Rome,, Cardarelli Hospital, Sapienza University of Rome, Fondazione IRCCS Istituto Neurologico ‘Carlo Besta’, University of Messina, University of Naples Federico II, Papa Giovanni XXIII Hospital, Argenx BVBA, Argenx BVBA, Argenx Inc., RAReg S.r.l., CliCon S.r.l. Società Benefit Health, CliCon S.r.l. Società Benefit Health and CliCon S.r.l. Società Benefit Health