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250 microg or 500 microg interferon beta-1b versus 20 mg glatiramer acetate in relapsing-remitting multiple sclerosis: a prospective, randomised, multicentre study.
O'Connor P, Filippi M, Arnason B, Comi G, Cook S, Goodin D, Hartung HP, Jeffery D, Kappos L, Boateng F, Filippov V, Groth M, Knappertz V, Kraus C, Sandbrink R, Pohl C, Bogumil T; BEYOND Study Group; O'Connor P, Filippi M, Arnason B, Cook S, Goodin D, Hartung HP, Kappos L, Jeffery D, Comi G. O'Connor P, et al. Lancet Neurol. 2009 Oct;8(10):889-97. doi: 10.1016/S1474-4422(09)70226-1. Epub 2009 Sep 2. Lancet Neurol. 2009. PMID: 19729344 Clinical Trial.