RT Journal Article SR Electronic T1 Spinocerebellar ataxia and the A3243G and A8344G mtDNA mutations JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP e22 OP e22 DO 10.1136/jmg.39.5.e22 VO 39 IS 5 A1 P F Chinnery A1 D T Brown A1 K Archibald A1 A Curtis A1 D M Turnbull YR 2002 UL http://jmg.bmj.com/content/39/5/e22.abstract AB