1. Global Health Unit, Department of Health Sciences, University Medical Center Groningen, Groningen, the Netherlands
2. School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
3. Department of Obstetrics and Gynaecology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
4. Department of Health Sciences, Community and Occupational Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
5. Department of Cultural Geography, Faculty of Spatial Sciences, University of Groningen, Groningen, the Netherlands
6. Department Obstetrics & Gynaecology, Leeuwarden Medical Centre, Leeuwarden, the Netherlands