[1] Hospital de Cruces,Neurology Department
[2] University of Basque Country UPV/EHU,Research General Service, Bank of DNA and Dpt. of Z. and Cellular Biology, Faculty of Pharmacy
[3] Hospital de Txagorritxu,Neurology Department
[4] Hospital de Basurto,Neurology Deparment
[5] Hospital Donosti,Neurology Department
[6] Hospital de Galdakao,Neurology Department
[7] Hospital Santiago Apóstol,Neurology Department