1. Department of Obstetrics and Gynaecology Queen Mary Hospital The University of Hong Kong Hong Kong City Hong Kong SAR China
2. UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction Department of Sexual and Reproductive Health and Research World Health Organization Geneva Switzerland
3. Department of Obstetrics and Gynaecology University of the Witwatersrand Johannesburg South Africa
4. University of Kwa‐Zulu Natal Pietermaritzburg South Africa
5. Department of Obstetrics and Gynaecology University of Botswana Gaborone Botswana
6. Effective Care Research Unit University of the Witwatersrand and Water Sisulu University Mthatha South Africa