1. University Hospital “Dr. Manuel Fajardo Rivero” Havana Cuba
2. Department of Clinical Neurophysiology Institute of Neurology and Neurosurgery Havana Cuba
3. Laboratory of Neurophysiology University Hospital “Dr. Luis Díaz Soto” Havana Cuba
4. Faculty of Social Welfare and Health Sciences University of Haifa Haifa Israel
5. Department of Neurology University of the Medical Sciences Havana Cuba