1. Institute for Medical Technology Assessment, Erasmus University Rotterdam, P.O. Box 1738, 3000 DR Rotterdam, The Netherlands
2. Syreon Research Institute, Mexikoi str. 65/A, 1142 Budapest, Hungary
3. Health Economics Research Centre, University of Oxford, Oxford OX3 7LF, UK
4. Erasmus School of Health Policy & Management, Erasmus University Rotterdam, P.O. Box 1738, 3000 DR Rotterdam, The Netherlands