[1] Katholieke Univ Leuven, Dept Endocrinol, Univ Hosp Gasthuisberg, Herestr 49, B-3000 Leuven, Belgium
[2] Katholieke Univ Leuven, Herestr 49, B-3000 Leuven, Belgium
[3] OLV Ziekenhuis Aalst Asse Ninove, Dept Endocrinol, Moorselbaan 164, B-9300 Aalst, Belgium
[4] Katholieke Univ Leuven, Dept Obstet & Gynecol, Univ Hosp Gasthuisberg, Herestr 49, B-3000 Leuven, Belgium
[5] OLV Ziekenhuis Aalst Asse Ninove, Dept Obstet & Gynecol, Moorselbaan 164, B-9300 Aalst, Belgium
[6] Imelda Ziekenhuis, Dept Endocrinol, Imeldalaan 9, B-2820 Bonheiden, Belgium
[7] Imelda Ziekenhuis, Dept Obstet & Gynecol, Imeldalaan 9, B-2820 Bonheiden, Belgium
[8] Antwerp Univ Hosp, Dept Endocrinol Diabetol Metab, Drie Eikenstr 655, B-2650 Edegem, Belgium
[9] Antwerp Univ Hosp, Dept Obstet & Gynecol, Drie Eikenstr 655, B-2650 Edegem, Belgium
[10] Kliniek St Jan Brussel, Dept Endocrinol, Kruidtuinlaan 32, B-1000 Brussels, Belgium
[11] Kliniek St Jan Brussel, Dept Obstet & Gynecol, Kruidtuinlaan 32, B-1000 Brussels, Belgium
[12] AZ St Jan Brugge, Dept Endocrinol, Ruddershove 10, B-8000 Brugge, Belgium
[13] AZ St Jan Brugge, Dept Obstet & Gynecol, Ruddershove 10, B-8000 Brugge, Belgium
[14] Katholieke Univ Leuven, Ctr Biostat & Stat Bioinformat, Kapucijnenvoer 35 Bloc D,Box 7001, B-3000 Leuven, Belgium