1. Laboratory of Forensic Medicine and Toxicology, Aristotle University of Thessaloniki, Thessaloniki, Greece
2. Department of Public Health, Administration of Central Makedonian Region, Thessaloniki, Greece
3. Intensive Care Unit, Agios Dimitrios General Hospital, Thessaloniki, Greece
4. Department of Respiratory Medicine, G Papanikolaou Hospital, Thessaloniki, Greece