Natalizumab is associated with early improvement of working ability in relapsing-remitting multiple sclerosis patients: WANT observational study results. - Capra, Ruggero; Morra, Vincenzo Brescia; Mirabella, Massimiliano; Gasperini, Claudio; Scandellari, Cinzia; Totaro, Rocco; De Rossi, Nicola; Masera, Silvia; Zipoli, Valentina; Patti, Francesco (Neurological Sciences, 2021)