Perumal J, Fox RJ, Balabanov R, Balcer LJ, Galetta S, Makh S, Santra S, Hotermans C, Lee L. Outcomes of natalizumab treatment within 3?years of relapsing-remitting multiple sclerosis diagnosis: a prespecified 2-year interim analysis of STRIVE. BMC Neurol. 2019 Jun 08; 19(1):116.