1. Pediatric Surgery and Transplantation Unit
2. Anaesthesiology
3. Pediatric Radiology
4. Pediatric Cardiology, Cliniques Universitaires St. Luc, Brussels, Belgium
5. Institute of Pathology; Centre Hospitalier Universitaire Vaudois; Lausanne Switzerland
6. Laboratory of Hepato-Gastroenterology
7. Institute of Experimental and Clinical Research; Université Catholique de Louvain; Brussels Belgium
8. Pediatric Gastroenterology and Hepatology; Cliniques Universitaires St. Luc; Brussels Belgium