1. Institute for Palliative Care, Region Skåne and Lund University, Lund, Sweden
2. Department of Clinical Sciences Lund, Lund University, Lund, Sweden
3. Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
4. Division of Clinical Epidemiology, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
5. Rheumatology Unit, Department of Medicine, Solna, Center for Molecular Medicine (CMM), Karolinska Institutet, Stockholm, Sweden
6. Department of Gastroenterology, Dermatology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden