Chapter 2 . 1 Reduced biological activity of recombinant IFN-β and treatment response IFN-β bioactivity measurement in MS : feasibility for routine clinical practice
L. F. van der Voort,A. Kok,A. Visser,C. B. M. Oudejans,M. Caldano,F. Gilli,A. Bertolotto,C. H. Polman,J. Killestein,M. H. Sombekke,J. J. Kragt,J. M Nielsen,H. Guzel,C. B. M. Oudejan,J. B. A. Crusi,A. Salvador Peña,H. Vrenken
