1. Yaoundé Central Hospital; Centre for the Development of Best Practices in Health (CDBPH); Henri Dunant Avenue PO Box 87 Yaoundé Cameroon
2. South African Medical Research Council; South African Cochrane Centre; Tygerberg South Africa
3. The University of Liverpool; Cochrane Pregnancy and Childbirth Group, Department of Women's and Children's Health; First Floor, Liverpool Women's NHS Foundation Trust Crown Street Liverpool UK L8 7SS
4. Clinical Research Institute (American University of Beirut Medical Center); Clinical Epidemiological Unit; Gefinor 4th Floor Hamra Beirut Lebanon
5. Liverpool School of Tropical Medicine; Cochrane Infectious Diseases Group; Pembroke Place Liverpool UK L3 5QA