Role of Therapeutic Plasma Exchange in Treatment of Tumefactive Multiple Sclerosis-Associated Low CD4 and CD8 Levels. Lew K, Mewada N, Ramanujam S, Hassanzadeh B, Donahue JE, Peddareddygari L R, Moser R, Kososky C, Grewal RP Case Rep Neurol. 2016 May-Aug; 8(2):179-184. PMID: 27721782. Abstract CommentRecommendBookmarkWatch