1. Department of Orthopedics and Traumatology, University of Crete School of Medicine, 71003 Heraklion, Greece
2. Department of Respiratory Medicine, University General Hospital of Heraklion, Laboratory of Molecular and Cellular Pneumonology, Medical School, University of Crete, 71003 Heraklion, Greece
3. Laboratory of Clinical Virology, Medical School, University of Crete, 71003 Heraklion, Greece