The frequency of cerebellar ataxia , pyramidal bame signs , dysarthria and damages of automatic nervous system are 92.1 % , 86.8 % , 84.2 % and 76.3 % respectively .
2受累系统症状出现频率为小脑共济失调92.1%，锥体束征86.8%，构音障碍84.2%，自主神经损害76.3%。
bame