Elevated interleukin-12 in progressive multiple sclerosis correlates with disease activity and is normalized by pulse cyclophosphamide therapy. Comabella M, Balashov K, Issazadeh S, Smith D, Weiner HL, Khoury SJ J Clin Invest. 1998 Aug 15; 102(4):671-8. PMID: 9710434. Abstract CommentRecommendBookmarkWatch