1. CIBERNED, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas; Inst. de Salud Carlos III; Madrid Spain
2. Inst. of Biomedicine of the Univ. of Barcelona (IBUB); Barcelona Spain
3. Dept. of Biochemistry and Molecular Biomedicine, Faculty of Biology; Univ. of Barcelona; Barcelona Spain
4. Dept. of Morphology and Cell Biology, Faculty of Medicine; Univ. of Oviedo; Asturias Spain
5. Inst. de Neurociencias del Principado de Asturias (INEUROPA), Facultad de Psicología; Univ. de Oviedo; Plaza Feijóo s/n 33003 Oviedo Asturias Spain
6. Inst. de Investigación Sanitaria del Principado de Asturias (ISPA); 33011 Oviedo Asturias Spain
7. Dept. of Biochemistry and Physiology, School of Pharmacy; Univ. of Barcelona; Barcelona Spain
8. Inst. of Nanotechnology of the Univ. of Barcelona (IN2UB); Barcelona Spain