1. Department of Medical Health Psychology; University of Tilburg; Tilburg; the Netherlands
2. Department of Clinical and Molecular Endocrinology and Oncology; University of Napels Frederico II; Napels; Italy
3. Department of Midwifery Science; AVM University; Maastricht; the Netherlands
4. Department of Obstetrics & Gynecology; Catharina Hospital; Eindhoven; the Netherlands