1. Department of Reproductive Medicine, Obstetrics and Gynecology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
2. Endocrinology and Metabolism, University of Chile, Santiago, Chile
3. Unit of Endocrinology, Clinica Las Condes, Santiago, Chile
4. Department of Obstetrics and Gynecology, Erasmus Medical Center, University Medical Center Rotterdam, The Netherlands
5. Department of Obstetrics, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht University, The Netherlands
6. Julius Centre for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
7. Department of Pediatric Immunology, Centre for Molecular and Cellular Intervention, University Medical Centre Utrecht, Utrecht University, Utrecht, The Netherlands
8. Department of Obstetrics and Gynecology, Penn State University College of Medicine, Hershey, PA, USA