1. Department of Clinical Nutrition; University of Eastern Finland; Institute of Public Health and Clinical Nutrition; Kuopio Finland
2. Department of Medicine (H7); Karolinska Institute; Karolinska University Hospital; Huddinge Stockholm Sweden
3. Department of Surgery; Kuopio University Hospital; Kuopio Finland.
4. Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine; University of Ulm; Ulm Germany
5. Departments of Medicine and Clinical Nutrition, Obesity Center; Kuopio University Hospital; Kuopio Finland
6. Research Unit; Kuopio University Hospital; Kuopio Finland