1. Molecular Neurology Laboratory, Hospital Nacional de Paraplejicos (HNP), Toledo, Spain.
2. Actual address: Wicking Dementia Research and Education Center, University of Tasmania Hobart, Hobart, TAS, Australia.
3. Actual address: Department of Neurology and Center for Neuroscience and Regeneration Research, Yale University School of Medicine, New Haven, Connecticut.
4. Molecular Neurobiology Unit, MBB, Karolinska Institute, Stockholm, Sweden.