Association of Deep Gray Matter Damage With Cortical and Spinal Cord Degeneration in Primary Progressive Multiple Sclerosis. Ruggieri S, Petracca M, Miller A, Krieger S, Ghassemi R, Bencosme Y, Riley C, Howard J, Lublin F, Inglese M JAMA Neurol. 2015 Oct 12:1-9. PMID: 26457955. Abstract CommentRecommendBookmarkWatch