Treatment of biceps-triceps co-contractions after nerve regeneration in obstretical brachial plexus lesions - a new indication for botulinum toxin type A. - Rollnik,J.D.; Hierner,R.; Schubert,M.; Shen,Z.L.; Tröger,M.; Johannes,S.; Wohlfarth,K.; Berger,A.C.; Dengler,R. (Neurology, 2000)