Affiliation: | 1. Department of Digestive and Oncologic Surgery, Bicêtre Hospital, Assistance Publique – H?pitaux de Paris, University Paris‐Sud, Le Kremlin‐Bicêtre, France;2. Department of Pathology, Bicêtre Hospital, Assistance Publique – H?pitaux de Paris, University Paris‐Sud, Le Kremlin‐Bicêtre, France |