1. Department of Neurosciences, Loyola University Chicago, 2160 South First Avenue, Maywood, IL 60153, USA
2. Neurology Center of Fairfax, 3020 Hamaker Court, Suite 400, Fairfax, VA 22031, USA
3. South Florida Neurology Associates, 1601 Clint Moore Road, Suite 120, Boca Raton, FL 33487, USA
4. Tanner Center and Foundation for MS, 509 Brookwood Boulevard, Suite 101, Birmingham, AL 35209, USA
5. Neurology Center, 3907 Waring Road, Suite 2, Oceanside, CA 92056, USA
6. Multiple Sclerosis Care Center of Neurological Services, 3849 Oakwater Circle, Orlando, FL 38206, USA
7. Questcor Pharmaceuticals, 26118 Research Road, Hayward, CA 94545, USA