1. Region Vastra Gotaland, Sahlgrenska University Hospital, Gothenburg, Sweden
2. Chalmers University of Technology, Department of Technology Management and Economics, Gothenburg, Sweden
3. University West, Department of Engineering Science, Trollhattan, Sweden
4. University of Gothenburg, Department of Business Administration, Gothenburg, Sweden
5. Region Vastra Gotaland, Head Office, Gothenburg, Sweden