Department of Neurology;
Xiangya Hospital;
Central South University;
Changsha 410008;
Hunan Province;
China;
Department of Neurology;
Xian-gya Third Hospital;
Central South University;
-Changsha 410013;
Hunan Province;
China;
National Laboratory of Medical Genetics of China;
Changsha 410008;
Hunan Province;
China;
神经系统疾病; 产前诊断; 中国大陆; 调型; 小脑; 脊髓; CAG重复; 三核苷酸重复;