Clinical variability of early-onset congenital myasthenic syndrome due to biallelic RAPSN mutations in Brazil - Estephan, Eduardo de Paula; Zambon, Antonio Alberto; Marchiori, Paulo Euripedes; Silva, Andre Macedo Serafim da; Caldas, Vitor Marques; Moreno, Cristiane Araujo Martins; Reed, Umbertina Conti; Horvath, Rita; Topf, Ana; Lochmueller, Hanns (Neuromuscular disorders, 2018)