International Breastfeeding Journal, Volume 9, No. 1, Year 2014
BMJ Open, Volume 9, No. 5, Year 2019
BMC Public Health, Volume 12, No. 1, Year 2012
BMC Pregnancy and Childbirth, Volume 16, No. 1, Year 2016
PLoS ONE, Volume 11, No. 6, Year 2016