1. Department of Medical Sciences, Uppsala University, Uppsala, Sweden.
2. Clinical Nutrition and Metabolism, Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden.
3. Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden.
4. School of Health and Social Studies, Dalarna University, Falun, Sweden.