1. Global Health Section; Department of Public Health; University of Copenhagen; Copenhagen Denmark
2. Mnazi Mmoja Hospital; Zanzibar Tanzania
3. Julius Centre for Health Sciences and Primary Care; University Medical Center Utrecht; Utrecht the Netherlands
4. School of Health & Medical Sciences; State University of Zanzibar; Zanzibar Tanzania
5. Department of Obstetrics; Rigshospitalet; Copenhagen University Hospital; Copenhagen Denmark
6. Section of Biostatistics; Department of Public Health; University of Copenhagen; Copenhagen Denmark
7. Athena Institute; VU University of Amsterdam; Amsterdam the Netherlands