1. First Department of Surgery, Medical School, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece
2. Hellenic Minimally Invasive and Robotic Surgery Study Group, Athens, Greece
3. First Propaedeutic Department of Surgery, Medical School, National and Kapodistrian University of Athens, Hippocration General Hospital, Athens, Greece
4. Third Department of Surgery, Athens General Hospital "Georgios Gennimatas", Athens, Greece
5. First Department of Cardiology, Biomedical Engineering Unit, Medical School, National and Kapodistrian University of Athens, Athens, Greece
6. Second Propedeutic Department of Surgery, Medical School, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece