Intermediate Repeat Expansion in the <i>ATXN2</i> Gene as a Risk Factor in the ALS and FTD Spanish Population oleh Daniel Borrego-Hernández, Juan Francisco Vázquez-Costa, Raúl Domínguez-Rubio, Laura Expósito-Blázquez, Elena Aller, Ariadna Padró-Miquel, Pilar García-Casanova, María J. Colomina, Cristina Martín-Arriscado, Rosario Osta, Pilar Cordero-Vázquez, Jesús Esteban-Pérez, Mónica Povedano-Panadés, Alberto García-Redondo