Risk of Getting COVID-19 in People With Multiple Sclerosis: A Case-Control Study.

Iaffaldano P, Lucisano G, Manni A, Paolicelli D, Patti F, Capobianco M, Brescia Morra V, Sola P, Pesci I, Lus G, De Luca G, Lugaresi A, Cavalla P, Montepietra S, Maniscalco GT, Granella F, Ragonese P, Vianello M, Brambilla L, Totaro R, Toscano S, Malucchi S, Petracca M, Moiola L, Ferraro D, Lepore V, Mosconi P, Ponzio M, Tedeschi G, Comi G, Battaglia MA, Filippi M, Amato MP, Trojano M; Italian MS Register.