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, Aurora, Colorado.
7 Department of Pediatrics, Dr von Hauner Children's Hospital, LMU University Hospital Munich, Munich, Germany, and Department of Pediatrics, Gastroenterology and Nutrition, School of Medicine Collegium Medicum, University of Warmia and Mazury, Olsztyn, Poland.
8 Institute of Biomedicine, University of Turku and Department of Pediatrics, Turku University Hospital, Turku, Finland.
9 Institute of Diabetes Research, Helmholtz Zentrum München, Munich, Germany.
10 National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland.