1. Department of Primary Health Care, Göteborg University, Göteborg and Research and Development, Primary Health Care, Halland
2. Department of Primary Health Care, Göteborg University, Göteborg, Research and Development, Primary Health Care, Halland, School of Social and Health Sciences, Halmstad University, Halmstad
3. School of Social and Health Sciences, Halmstad University, Halmstad and Heart & Lung Division, Lund University Hospital, Lund
4. Department of Primary Health Care, Göteborg University, Göteborg, School of Social and Health Sciences, Halmstad University, Halmstad, School of Health Sciences and Social Work, Växjö University, Växjö, Sweden,