[1] Maastricht Univ Med Ctr MUMC, Dept Gynaecol, Maastricht, Netherlands
[2] Maastricht Univ, GROW Sch Oncol & Reprod, Maastricht, Netherlands
[3] Lublin Med Univ, Dept Gynaecol, Lublin, Poland
[4] German Res Ctr Environm Hlth, Helmholtz Zentrum Munchen, Inst Epidemiol, Neuherberg, Germany
[5] German Ctr Diabet Res DZD, Neuherberg, Germany
[6] Univ Ljubljana, Inst Biochem & Mol Genet, Fac Med, Ljubljana, Slovenia