Baroncini D, Simone M, Iaffaldano P, Brescia Morra V, Lanzillo R, Filippi M, Romeo M, Patti F, Chisari CG, Cocco E, Fenu G, Salemi G, Ragonese P, Inglese M, Cellerino M, Margari L, Comi G, Zaffaroni M, Ghezzi A, Italian MS registry. Risk of Persistent Disability in Patients With Pediatric-Onset Multiple Sclerosis. JAMA Neurol. 2021; 78(6): 726-735.