1. Department of Liver Surgery and Transplantation; CHU Sart-Tilman B35, B-4000 Liège, Belgium.
2. Department of Hepato-Gastroenterology; CHU Sart-Tilman B35, B-4000 Liège, Belgium.
3. Department of Anaesthesiology and Intensive Care, CHU Sart-Tilman B35, B-4000 Liège, Belgium.