1. Division of Hepatology, Department of Upper GI Diseases, Karolinska University Hospital, Stockholm, Sweden
2. Unit of Gastroenterology and Rheumatology, Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
3. Division of Clinical Epidemiology, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
4. Division of Family Medicine, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
5. Academic Primary Health Care Centre, Region Stockholm Region, Stockholm, Sweden