[1]Department of Surgery Pietro Valdoni;
Policlinico Umberto I;
00161 Rome;
Italy;
[1]Department of Surgery Pietro Valdoni;
Policlinico Umberto I;
00161 Rome;
Italy;
[2]Department of Gynecological Obstetrical and Urological Sciences;
Policlinico Umberto I;
00161 Rome;
Italy;
[3]Department of General Surgery;
Barmherzige Brüder Hospital;
93049 Regensburg;
Germany;