1. European Observatory on Health Systems and Policies, London School of Economics and Political Science, London, UK
2. Bispebjerg and Frederiksberg University Hospital, Copenhagen, Denmark
3. Optimedis AG, Borsteler Chaussee 53, Hamburg, Germany
4. ZIO Zorg In Ontwikkeling, Wilheminasingel 75, Maastricht, The Netherlands
5. Maastricht University Medical Centre, Maastricht, The Netherlands