Current and former users of Tysabri are being asked to participate in an unofficial survey conducted by Stu’s Views & M.S. News, which is a product of the non-profit MS Views and News. To participate, click here: http://www.msviewsandrelatednews.blogspot.com/2009/09/un-official-survey-for-tysabri-users.com.html. Participants will be asked to answer several questions regarding their experience with Tysabri and their answers will be posted as comments on the blog.