[1] Natl Inst Hlth & Welf, Dept Lifestyle & Participat, Nutr Unit, Helsinki, Finland
[2] Natl Inst Hlth & Welf, Dept Chron Dis Prevent, Dis Risk Unit, Helsinki, Finland
[3] Univ Tampere, Sch Hlth Sci, FIN-33101 Tampere, Finland
[4] Univ Helsinki, Childrens Hosp, Helsinki, Finland
[5] Univ Helsinki, Cent Hosp, Helsinki, Finland
[6] Univ Helsinki, Hjelt Inst, Helsinki, Finland
[7] Univ Helsinki, Folkhalsan Res Inst, Helsinki, Finland
[8] Univ Helsinki, Diabet & Obes Res Program, Helsinki, Finland
[9] Univ Edinburgh, Ctr Populat Hlth Sci, Allergy & Resp Res Grp, Edinburgh, Midlothian, Scotland
[10] Univ Turku, Dept Math & Stat, Turku, Finland
[11] Univ Turku, Dept Pediat, Turku, Finland
[12] Seinajoki Cent Hosp, Dept Lab Med, Tampere, Finland
[13] Seinajoki Cent Hosp, Med Res Unit, Tampere, Finland
[14] Univ Tampere, FIN-33101 Tampere, Finland
[15] Pirkanmaa Hosp Dist, Ctr Lab Med, Tampere, Finland
[16] Univ Turku, Immunogenet Lab, Turku, Finland
[17] Tampere Univ Hosp, Dept Pediat, Tampere, Finland
[18] Univ Oulu, Dept Pediat, SF-90100 Oulu, Finland
[19] Tampere Univ Hosp, Pirkanmaa Hosp Dist, Res Ctr Child Hlth, Tampere, Finland
[20] Tampere Univ Hosp, Pirkanmaa Hosp Dist, Ctr Sci, Tampere, Finland