1. Second Department of Psychiatry, National and Kapodistrian University of Athens, Attikon University General Hospital, Athens 12462, Greece
2. Biomedical Applications Unit, Institute of Chemical Biology, National Hellenic Research Foundation (NHRF), Athens 11635, Greece
3. Second Department of Critical Care Medicine, Attikon University Hospital, Athens 12462, Greece
4. Laboratory of Clinical Virology, School of Medicine, University of Crete, Heraklion 71003, Greece
5. Clinical Microbiology Laboratory, School of Medicine, National and Kapodistrian University of Athens, Attikon University General Hospital, Athens 12462, Greece