1 Celiac Disease Research Center, Faculty of Medicine and Life Sciences, University of Tampere, Finland. Electronic address: rakel.nurmi@fimnet.fi.
2 Tampere University Hospital, Department of Internal Medicine, Tampere, Finland.
3 Tampere University Hospital, Department of Internal Medicine, Tampere, Finland; Faculty of Medicine and Life Sciences, University of Tampere, Finland.
4 Medical Research Unit, Seinäjoki Central Hospital, Finland; University of Tampere, Finland.
5 Faculty of Social Sciences, University of Tampere, Finland.
6 Celiac Disease Research Center, Faculty of Medicine and Life Sciences, University of Tampere, Finland; Tampere University Hospital, Department of Internal Medicine, Tampere, Finland.