[1] Univ Hosp Leuven, KU Leuven, Dept Dev & Regenerat, Leuven, Belgium
[2] Univ Hosp Leuven, Dept Obstet & Gynecol, Leuven, Belgium
[3] Univ Hosp Leuven, KU Leuven, Dept Imaging & Pathol, Leuven, Belgium
[4] Univ Hosp Leuven, Dept Pathol, Leuven, Belgium
[5] Ziekenhuis Netwerk Antwerpen, Dept Obstet & Gynecol, Campus Middelheim, Antwerp, Belgium
[6] Univ Hosp Leuven, KU Leuven, Dept Human Genet, Leuven, Belgium
[7] Univ Hosp Leuven, Ctr Menselijke Erfelijkheid, Leuven, Belgium