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Changes in the Burke-Fahn-Marsden Dystonia Rating Scale (BFM-DRS) score, Jankovic Rating Scale (JRS) score and Blepharospasm Disability Index (BSDI). Fifteen months after the operation, the patient's preoperative BFM-DRS score (8), JRS score (12) and BSDI (19) decreased to 1 (87.5% improvement), 1 (91.7%improvement) and 0 (100% improvement), respectively.
