Autosomal recessive spinocerebellar ataxia 18 caused by homozygous exon 14 duplication in GRID2 and review of the literature - Ceylan, A C; Acar Arslan, E; Erdem, H B; Kavus, H; Arslan, M; Topaloğlu, H (Acta Neurol Belg, 2021)