1. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
2. Department of Pediatrics, Örebro University Hospital, Örebro, Sweden
3. Division of Epidemiology and Public Health, School of Medicine, University of Nottingham, Nottingham, United Kingdom
4. Celiac Disease Center, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
5. Division of Gastroenterology and Hepatology, Department of Immunology, Mayo Clinic, Rochester, Minnesota
6. Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
7. Department of Hematology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
8. Hematology center, Karolinska University Hospital, Stockholm, Sweden