Samba, C., Tchibindat, F., Gourmel, B., Houze, P. and Malvy, D. 2013. Prevalence of Vitamin A Deficiency in Pregnant and Lactating Women in the Republic of Congo. Journal of Health, Population and Nutrition. 31, 1 (Apr. 2013), 28–36. DOI:https://doi.org/10.3329/jhpn.v31i1.14746.