Rojas JI, Romano M, Ciapponi A, Patrucco L, Cristiano E. Interferon Beta for primary progressive multiple sclerosis. Cochrane Database Syst Rev. 2010(1):CD006643.
Rojas JI, Romano M, Ciapponi A, Patrucco L, Cristiano E. Interferon Beta for primary progressive multiple sclerosis. Cochrane Database Syst Rev. 2010(1):CD006643.