1. Center for Child Health ResearchUniversity of Tampere and Tampere University HospitalTampereFinland
2. Department of PediatricsHospital District of South OstrobothniaSeinäjokiFinland
3. Institute for Mother and Child Health BucharestUniversity of Medicine and Pharmacy ‘Carol Davila’BucharestRomania
4. Department of PediatricsHospital District of Kanta-HämeHämeenlinnaFinland
5. Faculty of Social SciencesUniversity of TampereTampereFinland
6. Department of Internal MedicineTampere University HospitalTampereFinland
7. Celiac Disease Research CenterUniversity of TampereTampereFinland