1. Dutch Pancreatitis Study Group, University Medical Center Utrecht; Department of Surgery; Heidelberglaan 100 P.O. Box 85500 Utrecht Utrecht Netherlands 3508 GA
2. Diakonessenhuis; Surgery; Bosboomstraat 1 Utrecht Utrecht Netherlands 3582 KE
3. St Elisabeth Hospital; Surgery; Hilvarenbeekseweg 60 Tilburg Netherlands 5000 LC
4. Academic Medical Centre, Amsterdam; Department of Surgery; Meibergdreef 9 Amsterdam Netherlands 1105 AZ
5. Höpital Nord - Marseille; Department of Digestive Surgery; Chemin des Bourrely Marseille Cedex 20 France 13915
6. University Medical Center; Surgery; Heidelberglaan 100 Utrecht Utrecht Netherlands 3584 CX
7. University Medical Centre Nijmegen; Department of Surgery 690; P.O. Box 9101 HB Nijmegen Netherlands 6500