A double-blind, randomized, controlled study of botulinum toxin type A in MS-related tremor. Van Der Walt A, Sung S, Spelman T, Marriott M, Kolbe S, Mitchell P, Evans A, Butzkueven H Neurology. 2012 Jul 3; 79(1):92-9. PMID: 22753445. Abstract CommentRecommendBookmarkWatch