Long-term efficacy, safety, and side effect profile of botulinum toxin in dystonia: a 20-year follow-up.
Ramirez-Castaneda Juan, Jankovic Joseph·Toxicon : official journal of the International Society on Toxinology
Most long-term studies of the efficacy and safety profile of botulinum toxin (BoNT) in the treatment of dystonia are limited by lack of objective assessments, relatively small sample size, or short follow-up periods. We present one of the longest follow-up studies of BoNT treatment. This is a retrospective, longitudina…