1. School of Paediatrics and Child Health; University of Western Australia; Perth Australia
2. Kintampo Health Research Centre; Ghana Health Service; Kintampo Ghana
3. Engender Health; New York USA
4. School of Public Health; Kwame Nkrumah University of Science and Technology; Kumasi Ghana
5. Faculty of Epidemiology and Population Health; London School of Hygiene and Tropical Medicine; London UK