Identification of a Novel GRM1 Frameshift Variant in Two Pakistani Families Broadens the Genetic Landscape of Ultra-Rare Spinocerebellar Ataxia Type 13.
Spinocerebellar Ataxia 44 Caused by a Novel GRM1 Variant: Reviewing the Contrasting Pathogenic Mechanisms Underlying Two GRM1-Associated Hereditary Ataxias.