1. Department of Neurosurgery, Lithuanian University of Health Sciences, Kaunas, Lithuania
2. Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
3. Department of Neurosurgery, Brigham and Women's Hospital, Boston, Massachusetts, USA
4. Behavioural medicine institute, Lithuanian University of Health Sciences, Palanga, Lithuania
5. CNR Institute of Clinical Physiology, Pisa, Italy