1. Department of Medicine; Stockholm Soder Hospital; Stockholm Sweden
2. Department of Rheumatology; Karolinska University Hospital; Stockholm Sweden
3. Departments of Clinical Nutrition and Metabolism and of Geriatrics; Uppsala University; Uppsala Sweden
4. Department of Hematology; Karolinska University Hospital; Center for Inflammation and Hematology Research; Stockholm Sweden
5. Department of Medicine; Karolinska Institute; Stockholm Sweden