A family with friedreich ataxia (FRDA) and Onion-Bulb formations at sural nerve biopsy - Barreira, Amilton Antunes; Marques Júnior, Wilson; Sweeney, M G; Davis, M B; Chimelli, Leila Maria Cardão; Wood, N W (International Conference on Charcot-Marie-Tooth Disorders, 1998)