1. United Medix Laboratories, Helsinki, Finland
2. Department of Clinical Chemistry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
3. Department of Gastroenterology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
4. Department of Rheumatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
5. Orton Orthopedic Hospital Helsinki, Helsinki, Finland
6. Department of Dermatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
7. New Children’s Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
8. Pediatric Gastroenterology, Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
9. Tays Eye Centre, Tampere University Hospital, Tampere, Finland
10. Centre for Rheumatology, Tampere University Hospital, Tampere, Finland
11. Department of Rheumatology, Jyväskylä Central Hospital, Jyväskylä, Finland
12. PEDEGO Research Unit, University of Oulu, Oulu, Finland
13. Department of Dermatology and Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland
14. Department of Rheumatology, Oulu University Hospital, Oulu, Finland
15. Department of Pediatrics, Oulu University Hospital, Oulu, Finland
16. Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland
17. Department of Gastroenterology, Oulu University Hospital, Oulu, Finland
18. Department of Pediatrics, Kuopio University Hospital, Kuopio, Finland
19. Department of Gastroenterology, Päijät-Häme Central Hospital, Lahti, Finland
20. Department of Clinical Microbiology, Fimlab Laboratories, Tampere, Finland
21. Department of Pediatrics, Central Ostrobothnia Central Hospital, Kokkola, Finland
22. Medicum, University of Helsinki, Helsinki, Finland
23. Tammer BioLab Ltd, Tampere, Finland