1. Uppsala Clinical Research Center; Uppsala University; 751 85 Uppsala Sweden
2. Department of Surgical Sciences; Uppsala University; Uppsala Sweden
3. Department of Public Health and Caring Sciences/Geriatrics; Uppsala University; Uppsala Sweden
4. Department of Medical Epidemiology and Biostatistics; Karolinska Institutet; Stockholm Sweden
5. Department of Medical Sciences; Uppsala University; Uppsala Sweden
6. Department of Clinical Science, Intervention and Technology; Karolinska Institutet; Stockholm Sweden
7. Department of Nephrology; Karolinska Institutet; Stockholm Sweden
8. The School of Health and Social Studies; Dalarna University; Falun Sweden