[1] Biomedicum Helsinki, Folkhalsan Res Ctr, Folkhalsan Inst Genet, Helsinki, Finland
[2] Univ Helsinki, Helsinki Univ Hosp, Abdominal Ctr, Endocrinol & Diabet, Helsinki, Finland
[3] Natl Inst Hlth & Welf, Chron Dis Prevent Unit, Helsinki, Finland
[4] Univ Helsinki, Fac Med, Program Clin & Mol Metab, Helsinki, Finland
[5] Univ Helsinki, Helsinki Univ Hosp, Abdominal Ctr, Nephrol, Helsinki, Finland