Laaksonen M, Pastinen T, Sj?roos M, Kuokkanen S, Ruutiainen J, Sumelahti ML, Reijonen H, Salonen R, Wikstr?m J, Panelius M, Partanen J, Tienari PJ, Ilonen J. HLA class II associated risk and protection against multiple sclerosis-a Finnish family study. J Neuroimmunol. 2002 Jan; 122(1-2):140-5.