Affiliations

• ¹ Centre for Maternal and Child Health Research, City University London, London, UK.
• ² INSERM, Obstetrical, Perinatal and Paediatric Epidemiology Research Team, Centre for Epidemiology and Biostatistics (U1153), Paris-Descartes University, Paris, France.
• ³ Department of Child Health, TNO, Netherlands Organisation for Applied Scientific Research, Leiden, The Netherlands.
• ⁴ Research Unit of Perinatal Epidemiology, Bambino Gesù Children's Hospital, Rome, Italy.
• ⁵ Department of Obstetrics and Gynaecology, Maastricht University Medical Centre, GROW School of Oncology and Developmental Biology, Maastricht, The Netherlands.
• ⁶ Perinatology Unit, University Medical Centre, Llubjana University, Llubjana, Slovenia.
• ⁷ Department of Obstetrics and Gynaecology, Landspitali University Hospital, Landspitali v/Hringbraut, Iceland.