1 Maastricht University Medical Centre (MUMC+), Department of Obstetrics and Gynecology, P.O. Box 5800, 6202 AZ Maastricht, the Netherlands.
2 Isala Hospital Zwolle, Department of Obstetrics and Gynecology, P.O. Box 10400, 8000 GK Zwolle, the Netherlands. Electronic address: [email protected].
3 University of Maastricht, School for Public Health and Prim Care, Faculty of Health, Medical and Life Sciences, Peter Debyeplein 1, 6229 HA Maastricht, the Netherlands. Electronic address: [email protected].
4 Maastricht University Medical Centre (MUMC+), Department of Clinical Laboratory, P.O. Box 5800, 6202 AZ Maastricht, the Netherlands. Electronic address: [email protected].
5 Maastricht University Medical Centre (MUMC+), Department of Obstetrics and Gynecology, P.O. Box 5800, 6202 AZ Maastricht, the Netherlands. Electronic address: [email protected].