AUTHOR=LeVine Steven M. TITLE=Is There an Increased Risk for Ischemic Stroke in Patients with Multiple Sclerosis, and If So, Should Preventive Treatment Be Considered? JOURNAL=Frontiers in Neurology VOLUME=Volume 7 - 2016 YEAR=2016 URL=https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2016.00128 DOI=10.3389/fneur.2016.00128 ISSN=1664-2295