K Apostolou1, D Schizas2. 1. First Department of Surgery, National and Kapodistrian University of Athens, Laikon General Hospital, Ag. Thoma 17 Str., Goudi, 11527, Athens, Greece. konstantinos.apostolou@gmail.com. 2. First Department of Surgery, National and Kapodistrian University of Athens, Laikon General Hospital, Ag. Thoma 17 Str., Goudi, 11527, Athens, Greece.