1. Faculty of Medicine and Health Technology Tampere University Tampere Finland
2. Department of Pediatrics Tampere University Hospital Tampere Finland
3. Faculty of Medicine, University of Helsinki and Department of Pediatric Gastroenterology Helsinki University Hospital HUS Helsinki Finland
4. Kuopio Pediatric Research Unit University of Eastern Finland and Kuopio University Hospital Kuopio Finland
5. Institute of Biomedicine, School of Medicine University of Eastern Finland Kuopio Finland
6. Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital University of Eastern Finland Kuopio Finland
7. Foundation for Research in Health Exercise and Nutrition Kuopio Research Institute of Exercise Medicine Kuopio Finland
8. Faculty of Social Sciences Tampere University Tampere Finland