Helsinki University Central Hospital, Helsinki, Finland
Karolinska University Hospital, Stockholm, Sweden
Uppsala University Hospital, Uppsala, Sweden
St. Olavs Hospital, Trondheim, Norway
Innlandet Hospital Trust, Gjøvik, Oppland, Norway
St Olav University Hospital, Department of Pediatrics, Trondheim. Olav Kyrres gt 17, Trondheim, Norway
Norwegian University of Science and Technology, Trondheim, Norway
Department of Endocrinology, St. Olavs Hospital, Trondheim, Norway
Ntnu/Dmf/Isb, Trondheim, Sør-Trøndelag, Norway