Phenotypic characterization and long term follow-up of Brazilian patients with progressive external ophthalmoplegia and primary MTDNA mutations - Carvalho, E.; Trindade, K. B. B.; Marques Júnior, Wilson; Barreira, Amilton Antunes; Sobreira, Cláudia Ferreira da Rosa (International Meeting of Mitochondrial Pathology (EUROMIT), 2017)