1. First Department of Otorhinolaryngology, Hippocration Hospital, Medical University of Athens, National and Kapodistrian University of Athens, Athens, Greece
2. Department of Pathology, Medical University of Athens, National and Kapodistrian University of Athens, Athens, Greece
3. Laboratory of Surgical Research, 1st Department of Propaedeutic Surgery, Hippocration Hospital, Medical University of Athens, National and Kapodistrian University of Athens, Athens, Greece
4. Department of Biochemistry and Molecular Biology, University of Athens, Athens, Greece