1. Department of Abdominal Surgery and Transplantation, Cliniques universitaires Saint-Luc, Brussels, Belgium;
2. Department of Hepato-Gastro-Enterology, Cliniques universitaires Saint-Luc, Brussels, Belgium;
3. Department of Radiology, Cliniques universitaires Saint-Luc, Brussels, Belgium;
4. Institute of Experimental and Clinical Research, Cliniques universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium