http://msj.sagepub.com/ Multiple Sclerosis Journal http://msj.sagepub.com/content/17/7/780 The online version of this article can be found at: DOI: 10.1177/1352458510397686 2011 17: 780 originally published online 22 February 2011 Mult Scler Jørgen Mørland, Wenche Telstad, Per Tore Førland and Kjell-Morten Myhr Trond Riise, Jorunn Kirkeleit, Jan Harald Aarseth, Elisabeth Farbu, Rune Midgard, Åse Mygland, Randi Eikeland, Tore Risk of MS is not associated with exposure to crude oil, but increases with low level of education Published by: http://www.sagepublications.com On behalf of: European Committee for Treatment and Research in Multiple Sclerosis Americas Committee for Treatment and Research in Multiple Sclerosis Pan-Asian Committee for Treatment and Research in Multiple Sclerosis Latin American Committee on Treatment and Research of Multiple Sclerosis can be found at: Multiple Sclerosis Journal Additional services and information for http://msj.sagepub.com/cgi/alerts Email Alerts: http://msj.sagepub.com/subscriptions Subscriptions: http://www.sagepub.com/journalsReprints.nav Reprints: http://www.sagepub.com/journalsPermissions.nav Permissions: at Universitetsbiblioteket i Bergen on August 1, 2014 msj.sagepub.com Downloaded from at Universitetsbiblioteket i Bergen on August 1, 2014 msj.sagepub.com Downloaded from