[1] Univ Helsinki, Childrens Hosp, Sci Lab, Helsinki, Finland
[2] Helsinki Univ Hosp, Helsinki, Finland
[3] Folkhalsan Res Ctr, Helsinki, Finland
[4] Univ Helsinki, Res Programs Unit, Diabet & Obes, Helsinki, Finland
[5] Univ Tartu, Inst Biomed & Translat Med, Dept Immunol, Tartu, Estonia
[6] Univ Turku, Immunogenet Lab, Turku, Finland
[7] Tampere Univ Hosp, Tampere Ctr Child Hlth Res, Tampere, Finland