Affiliation: | (1) Department of Obstetrics, Neonatology and Gynaecology, University Medical Center Utrecht, KJ02.507.0 Wilhelmina Children’s Hospital, PO Box 85090, 3508 AB Utrecht, The Netherlands;(2) Department of Obstetrics, Leiden University Medical Center, Leiden, The Netherlands;(3) Departments of Clinical Chemistry, University Medical Center Utrecht, Utrecht, The Netherlands;(4) Departments of Obstetrics, Isala Clinics, Location Sophia, Zwolle, The Netherlands;(5) Department of Clinical Epidemiology and Biostatistics, Academic Medical Center, Amsterdam, The Netherlands;(6) Department of Obstetrics and Gynaecology, Academic Medical Center, Amsterdam, The Netherlands |