1. Center for Healthcare Operations Improvement and Research (CHOIR), University of Twente Enschede the Netherlands
2. Industrial Engineering and Business Information Systems, School of Management and Governance, University of Twente Enschede the Netherlands
3. Department of Quality and Process InnovationAcademic Medical Center Amsterdam Amsterdam the Netherlands
4. Department of Applied MathematicsStochastic Operations Research, University of Twente Enschede the Netherlands