Mikol, D D, Barkhof, F, Chang, P, Coyle, P K, Jeffery, D R, Schwid, S R, Stubinski, B & Uitdehaag, B M J 2008, ' Comparison of subcutaneous interferon beta-1a with glatiramer acetate in patients with relapsing multiple sclerosis (the REbif vs Glatiramer Acetate in Relapsing MS Disease [REGARD] study): a multicentre, randomised, parallel, open-label trial ', Lancet Neurology, vol. 7, no. 10, pp. 903-914 . https://doi.org/10.1016/S1474-4422(08)70200-X Lancet Neurology, 7(10), 903-914. Lancet Publishing Group