Is early onset cerebellar ataxia with retained tendon reflexes identifiable by electrophysiologic and histologic profile? A comparison with Friedreich's ataxia. - Santoro,L.; Perretti,A.; Filla,A.; De Michele,G.; Lanzillo,B.; Barbieri,F.; Crisci,C.; Rippa,P.G.; Caruso,G. (J Neurol Sci, 1992)