Affiliation: | A. de Roode, MD, Consultant, J.G. Bovill, MD, PhD, FFARCSI, Professor, Department of Anaesthesiology, University Hospital of Leiden, PO Box 9600,2300 RC Leiden, M. Jelicic, PhD, B. Bonke, PhD, Senior Lecturers, Department of Medical Psychology and Psychotherapy, Erasmus University, Rotterdam, The Netherlands. |