IFNB1 and myeloid sarcoma: Spelman Spelman T T Frisell Frisell T T Piehl Piehl F F Hillert Hillert J J Comparative effectiveness of rituximab relative to IFN-β or glatiramer acetate in relapsing-remitting MS from the Swedish MS registry Comparative effectiveness of rituximab relative to IFN-β or glatiramer acetate in relapsing-remitting MS from the Swedish MS registry Mult Scler Mult Scler 2018 2018 24 24 1087 1087 1095 1095 10.1177/1352458517713668 10.1177/1352458517713668 supplied-pmid 28649912?