3Margolis RL. The spinocerehellar ataxias, orders emerges from chaos. Curr Neurol Neurosel Rep, 2002,2, 447-456.
4Soong BW, Lu YC, Choo KB, et al. Frequency analysis of autosomal dominant cerehellar ataxias in Taiwan Residents patients andclinical and molecular characterization of spinocerehellar ataxiatype 6. Arch Neurol, 2001,58: 1105-1109.
5Harding AE. Clinical features and classification of in heritedataxias. Adv Neurol, 1993,61 : 1-14.
6Kawaguchi Y, Okamoto T, Taniwaki M, et al. CAG expansion in a novel gene for Machado-Joseph disease at chromosome 14q32.1.Nat Genet, 1994,8 : 221-228.
7Pulst SM, Nechiporuk T, Nechiporuk T, et al. Moderate expansion of a normary hialletic trinucleotide repeat in spinoeerehellar ataxia type 2 gene on human chromosome 12. Nat Genet,1996,14 : 269-276.
8Orr H, Chung MY, Banfi S, et al. Expansion of an unstable trlnucleotide CAG repeat in splnocerebellar ataxia type 1. Nat Genet, 1993,4 : 221-226.
9Zhuchenko O, Bailey J, Bonnen P, et al. Autosomal dominant cerebellar ataxia (SCA6) associated with small ployglutamine expansion in the alpha 1A-vohage-dependent calcium channel Nat Genet, 1997,15 : 62-69.
10David G, Abbas N, Stevanin GD,et al. Cloning of the SCA7 gene reveals a highly unstable CAG repeat expansion. Nat Genet, 1997,17 : 65-70.
