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Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Box 400, 405 30, Gothenburg, Sweden
Department of Psychology, School of Business, Reykjavik University, Menntavegur 1, 101 Reykjavik, Iceland
Department of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, PO Box 6050, Langnes, 9037, Tromsø, Norway
Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Box 400, 405 30, Gothenburg, Sweden
Department of Biomedicine and Public Health, School of Health and Education, University of Skövde, PO Box 408, 541 28, Skövde, Sweden