1. Research Associate, School of Health Sciences, University of Birmingham, Birmingham, England,
2. Senior Lecturer, School of Health Sciences, University of Birmingham, Birmingham, England,
3. Senior Researcher, Centre for the Development of Health Services, Stockholm, Sweden,
4. Research Associate, National Institute for Psychosocial Factors and Health, Stockholm, Sweden,
5. Professor of Psychosocial Medicine, National Institute for Psychosocial Factors and Health, Stockholm, Sweden