[1] Vrije Univ Brussel VUB, Univ Ziekenhuis Brussel UZ Brussel, Res Grp Genet Reprod & Dev, Ctr Med Genet,Clin Sci, Laarbeeklaan 101, B-1090 Brussels, Belgium
[2] Vrije Univ Brussel VUB, Brussels IVF Ctr Reprod Med, Univ Ziekenhuis Brussel UZ Brussel, Res Grp Genet Reprod & Dev,Clin Sci, Brussels, Belgium
[3] Ghent Univ Hosp, Ctr Med Genet, B-9000 Ghent, Belgium
[4] Katholieke Univ Leuven, Dept Dermatol, Leuven, Belgium