1 Pediatric Research Institute, Oslo University Hospital, Oslo, Norway; Unit of Celiac Disease and Diabetes, Clinical Sciences Malmö, Lund University, Lund, Sweden; Department of Pediatrics, Skåne University Hospital Malmö, Malmö, Sweden. Electronic address: Elin.malmberg_hard_af_segerstad@med.lu.se.
2 Health Informatics Institute, University of South Florida, Tampa, Florida.
3 Unit of Celiac Disease and Diabetes, Clinical Sciences Malmö, Lund University, Lund, Sweden; Department of Pediatrics, Skåne University Hospital Malmö, Malmö, Sweden.
4 Finnish Institute of Health and Welfare, Helsinki, Finland; Wellbeing Services County of Pirkanmaa, Tampere University Hospital, Faculty of Social Sciences, Tampere University, Tampere, Finland; Center for Child Health Research, Tampere University and Tampere University Hospital, Tampere, Finland.
5 Unit of Celiac Disease and Diabetes, Clinical Sciences Malmö, Lund University, Lund, Sweden.
6 Department of Epidemiology, Colorado School of Public Health, USA.
7 Department of Pediatrics; Dr von Hauner Children's Hospital, LMU University Hospital Munich, Germany; Department of Paediatrics, Gastroenterology and Nutrition, School of Medicine Collegium Medicum, University of Warmia and Mazury, Poland.
8 Institute of Biomedicine, University of Turku and Department of Pediatrics, Turku University Hospital, Finland.
9 Institute of Diabetes Research, Helmholtz Zentrum München, Germany.
10 National Institute of Diabetes and Digestive and Kidney Diseases, USA.