Institution: | From the Services of Neurology, University Hospital "Marqués de Valdecilla," Santander, Spain (M. Toriello, A. Oterino, and A. Alonso-Arranz);Service of Neurology, University Hospital of Salamanca, Salamanca, Spain (J. Pascual);Health Center of Camargo, Cantabria, Spain (J. Castillo);Health Center of Santoña, Cantabria, Spain (R. Colás);Microbiology, University Hospital "Marqués de Valdecilla," Santander, Spain (C. Ruiz-Alegría);Health Center of Polanco, Cantabria, Spain (E. Quintela);Neurology Service of the "La Candelaria" Hospital, Tenerife, Spain (F. Montón and N. Ruiz-Lavilla). |