1. Centre of Research in Psychological and Somatic disorders (CoRPS), Department of Medical and Clinical Psychology Tilburg University Tilburg The Netherlands
2. Department of Methodology and Statistics Tilburg University Tilburg The Netherlands
3. UvA minds Academic Outpatient (Child and Adolescent) Treatment Centre of the University of Amsterdam Amsterdam The Netherlands
4. Research Institute of Child Development and Education University of Amsterdam Amsterdam The Netherlands
5. Departments of Psychiatry and Obstetrics Icahn School of Medicine at Mount Sinai New York New York USA
6. Department of Obstetrics and Gynaecology Maxima Medical Centre Veldhoven The Netherlands
7. Department of Midwifery Science, AVAG, Amsterdam Public Health Research Institute, Amsterdam UMC VU Medical Centre Amsterdam The Netherlands
8. Division of Midwifery, School of Health Sciences University of Nottingham Nottingham UK