1. Department of Maternal and Child Health, Carolina Global Breastfeeding Institute, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
2. Department of Nutrition, University of North Carolina Greensboro, Greensboro, NC, USA
3. Maternal and Child Health Program, School of Public Health, University of Maryland, Cornwall, NY, USA
4. School of Nursing and Midwifery, Western Sydney University, Penrith, NSW, AUS
5. Center for Evolution and Medicine, Arizona State University, Phoenix, AZ, USA
6. Dublin City University, School of Nursing and Human Sciences, Glasnevin Campus, Dublin 9, Ireland