1. Department of Reproductive Health, School of Maternal, Neonatal and Reproductive Health Kamuzu University of Health Sciences Blantyre Malawi
2. University Private Clinic Laboratory Kamuzu University of Health Sciences Blantyre Malawi
3. Department of Nursing Nkhotakota District Hospital Nkhotakota Malawi
4. Department of Global Health and Development London School of Hygiene and Tropical Medicine London UK