1. Ndala Hospital, Ndala, Tanzania
2. University Medical Centre Groningen/University of Groningen, Groningen, The Netherlands
3. Athena Institute, Faculty of Science, VU University, Amsterdam, The Netherlands
4. College of Health Sciences, University of Dodoma, Dodoma, Tanzania
5. Nzega District Hospital, Nzega, Tanzania
6. Department of Gynaecology and Obstetrics, Radboud University Medical Centre, Nijmegen, The Netherlands
7. Department of Gynaecology and Obstetrics, Leeuwarden Medical Centre, Leeuwarden, The Netherlands
8. Anthropology Department, University of Amsterdam, Amsterdam, The Netherlands