1 Unit of Obstetrics and Gynaecology, Department of Primary Health Care Sciences, Faculty of Medicine and Health Sciences, University of Zimbabwe, Harare, Zimbabwe.
2 ICAP, Columbia University, Harare, Zimbabwe.
3 School of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa.
4 School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK.