1. Centre for Health Services Research, School of Population and Global Health, University of Western Australia, 35 Stirling Hwy, Crawley, WA 6009, Australia
2. Faculty of Nursing, University of Alberta, Edmonton, AB T6G 1C9, Canada
3. Western Australia Centre for Rural Health, School of Population and Global Health, University of Western Australia, 35 Stirling Hwy, Crawley, WA 6009, Australia
4. Department of Nutrition, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA 01003, USA
5. Department of Nursing, College of Medicine, University of Ibadan, Ibadan 200005, Nigeria
6. Centre for the Right to Health, Abuja 904101, Nigeria
7. Maternal and Child Health Department, School of Nursing and Midwifery, University of Ghana, Accra P.O. Box LG43, Ghana
8. Department of Community Health Science, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 1N4, Canada