1 KG Jebsen Coeliac Disease Research Centre, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway; Department of Immunology, Oslo University Hospital, Rikshospitalet, Oslo, Norway. Electronic address: l.f.risnes@medisin.uio.no.
2 KG Jebsen Coeliac Disease Research Centre, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway; Department of Immunology, Oslo University Hospital, Rikshospitalet, Oslo, Norway.
3 Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
4 Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland; Department of Dermatology, Tampere University Hospital, Tampere, Finland.