1. Department of surgical oncology, 39 Rue Camille Desmoulins, 94805 Villejuif, France.
2. Department of Intensive care unit, 39 Rue Camille Desmoulins, 94805 Villejuif, France.
3. Department of gastro-enterology, 39 Rue Camille Desmoulins, 94805 Villejuif, France.
4. Department of radiology, Gustave Roussy Institute, 39 Rue Camille Desmoulins, 94805 Villejuif, France.