[1] Radboud Univ Nijmegen, Cleft & Craniofacial Ctr, Med Ctr, Postbox 9101, NL-6500 HB Nijmegen, Netherlands
[2] Erasmus MC, Cleft & Craniofacial Ctr, Rotterdam, Netherlands
[3] Radboud Univ Nijmegen, Med Ctr, Dept Obstet & Gynaecol, NL-6500 HB Nijmegen, Netherlands
[4] Radboud Univ Nijmegen, Med Ctr, Sci Inst Qual Healthcare, NL-6500 HB Nijmegen, Netherlands