1. INSERM U 972, Univ. Paris-Sud, IFR 93, Bicêtre Hospital, Le Kremlin-Bicêtre, France
2. Department of General Surgery, Univ. Paris-Sud, Antoine Béclère Hospital, Clamart, France
3. Department of Animal Surgery, Veterinary School of Nantes, Nantes, France
4. IFR 54, Service Commun d'Expérimentation Animale, Institut Gustave Roussy, Villejuif, France
5. CNRS UMR 8203, Institut Gustave Roussy, Villejuif, France
6. IFR 93, Bicêtre Hospital, Le Kremlin-Bicêtre, France
7. Department of Pathology, Bicêtre Hospital, Le Kremlin-Bicêtre, France
8. Department of Pediatric Radiology, Bicêtre Hospital, Le Kremlin-Bicêtre, France
9. INSERM U1064, CHU Hôtel Dieu, Université de Nantes, Nantes, France