1. Department of Neurosurgery, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
2. Faculty of Medicine, Department of physiology, Aristotle University of Thessaloniki, Thessaloniki, Greece
3. Department of Neurosurgery, Ibn Tofail Hospital, Université Cadi Ayyad, CHU Mohammed sixth Marrakech, Morocco
4. Institute of Health System Science, The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
5. Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
6. Medicine and Medical Statistics, Medical School, Aristotle University of ThessalonikiDepartment of Hygiene, Social-Preventive, Thessaloniki, Greece
7. Department of Obstetrics and Gynecology, Medical School, Aristotle University of ThessalonikiUnit of Reproductive Endocrinology, 1st, Thessaloniki, Greece