1. Department of Neurology; Neurometabolic Unit and Synaptic Metabolism Laboratory; Hospital Sant Joan de Déu; Barcelona Spain
2. Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat; Barcelona Spain
3. Centro de In.vestigación Biomédica en Red de Enfermedades Raras (CIBERER); Instituto de Salud Carlos III; Madrid Spain
4. Department of Genetics and Biochemistry; Hospital Sant Joan de Déu; Barcelona Spain
5. Statistics Department; Institut de Recerca Sant Joan de Déu; Barcelona Spain
6. Department of Biochemistry, Molecular and Cellular Biology; Universidad de Zaragoza; Zaragoza Spain