1. Faculty of Natural Sciences and Mathematics, “Ss. Cyril and Methodius” University, Skopje, Republic of Macedonia;
2. Medical Faculty, University Clinic of Psychiatry, “Ss. Cyril and Methodius” University, Skopje, Republic of Macedonia;
3. Medical Faculty, University Clinic of Neurosurgery, “Ss. Cyril and Methodius” University, Skopje, Republic of Macedonia;
4. Department for Haemostasis and Thrombosis, Institute for Transfusion Medicine, Skopje, Republic of Macedonia;
5. Medical Faculty, University Clinic of Neurology, “Ss. Cyril and Methodius” University, Skopje, Republic of Macedonia