1 Department of oncological visceral surgery, Gustave-Roussy hospital, 114, rue Édouard-Vaillant, 94805 Villejuif, France. Electronic address: maximekcollard@gmail.com.
2 Department of oncological visceral surgery, Gustave-Roussy hospital, 114, rue Édouard-Vaillant, 94805 Villejuif, France.