Perivascular spaces in MS patients at 7 Tesla MRI: A marker of neurodegeneration? Kilsdonk ID, Steenwijk MD, Pouwels PJW, Zwanenburg JJM, Visser F, Luijten PR, Geurts JJG, Barkhof F, Wattjes MP Mult Scler. 2014 Jul 10. Epub 2014 Jul 10. PMID: 25013150. Abstract CommentRecommendBookmarkWatch