1 Department of Obstetrics and Gynecology, Catharina Hospital, Michelangelolaan 2, 5623 EJ, Eindhoven, The Netherlands. Electronic address: jurgen.piek@catharinaziekenhuis.nl.
2 Department of Obstetrics and Gynecology, Catharina Hospital, Michelangelolaan 2, 5623 EJ, Eindhoven, The Netherlands.
3 Department of IQ healthcare, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands.
4 Department of Obstetrics and Gynecology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands.