1 Jan van Es Institute, Netherlands Expert Centre Integrated Primary Care, Randstad 2145-a, Almere, BG 1314, The Netherlands
2 Scientific Centre for Care and Welfare (Tranzo), Tilburg University, Tilburg, The Netherlands
3 Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
4 Department of Patient and Care, University Hospital Maastricht, Maastricht, The Netherlands
5 Department of Health Services Research, School for Public Health and Primary Care, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
6 Department of Psychology, Health Technology, University of Twente, Enschede, The Netherlands