http://www.ninds.nih.gov/disorders/ataxia/ataxia.htm cerebellar ataxia Overview Ataxias Ataxias and Cerebellar or Spinocerebellar Degeneration Spinocerebellar Degeneration ninds.nih.gov/ disorders/ ataxia/ ataxia.htm http://www.ninds.nih.gov/disorders/ataxia/ataxia.htm ninds.nih.gov/ disorders/ ataxia/ ataxia.htm NINDS Ataxias information page الأصل Overview NIH: Ataxias and Cerebellar/Spinocerebellar Degeneration ataxia