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