1. Médecins Du Monde, Greek delegation, Thessaloniki, Greece
2. Division of Transplant Surgery, Department of Surgery, Medical School, Aristotle University of Thessaloniki and Hippokration General Hospital, Thessaloniki, Greece
3. Neurodegeneration Imaging Group, Maurice Wohl Clinical Neuroscience Institute, London, UK
4. Pronto Soccorso e Medicina d’Urgenza, Ospedale Sant’Antonio, Padova, Italia
5. Department of Hygiene, Epidemiology & Medical Statistics, Medical School, National and Kapodistrian University of Athens, Athens, Greece