[1] Turku Ctr Biotechnol, Turku, Finland
[2] Univ Turku, Dept Pediat, Turku, Finland
[3] Univ Tampere, Sch Med, FIN-33101 Tampere, Finland
[4] Pirkanmaa Hosp Dist, Fimlab Labs, Tampere, Finland
[5] Univ Oulu, Dept Pediat, SF-90100 Oulu, Finland
[6] Oulu Univ Hosp, Oulu, Finland
[7] Univ Eastern Finland, Dept Clin Microbiol, Kuopio, Finland
[8] Univ Turku, Immunogenet Lab, Tukru, Finland
[9] Univ Turku, Dept Physiol & Pediat, Tukru, Finland
[10] Univ Helsinki, Childrens Hosp, Helsinki, Finland
[11] Univ Helsinki, Cent Hosp, Helsinki, Finland
[12] Univ Helsinki, Res Program Diabet & Obes, Helsinki, Finland
[13] Univ Maryland, Dept Pharmaceut Sci, Baltimore, MD 21201 USA