1. Perinatal Center, Department of Obstetrics and Gynecology; Institute of Clinical Sciences; Sahlgrenska Academy; Sahlgrenska University Hospital/Östra; Göteborg; Sweden
2. Department of Paediatrics; Institute of Clinical Sciences; Sahlgrenska Academy; Göteborg; Sweden
3. Maternal-Fetal Medicine Department; Hospital Clinic; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Universitat de Barcelona; Barcelona; Spain