Disability Worsening Phenotypes in Multiple Sclerosis and Impact of Disease-Modifying Treatments.

De Meo E, Addazio I, Portaccio E, Bonacchi R, Betti M, Patti F, Guerrieri S, Foschi M, Ferraro D, Annovazzi P, Brescia Morra V, Tortorella C, Lugaresi A, Camilli F, Pozzilli C, Perini P, Granella F, De Luca G, Torri Clerici VLAM, Vianello M, Romano S, Cocco EE, Lus G, Di Sapio A, Rocca MA, Simone M, Iaffaldano P, Filippi M, Trojano M, Amato MP.