Samba, C., Gourmel, B., Houze, P. and Malvy, D. 2010. Assessment of Vitamin A Status of Preschool Children in a Sub-Saharan African Setting: Comparative Advantage of Modified Relative-dose Response Test. Journal of Health, Population and Nutrition. 28, 5 (Sep. 2010), 484–493. DOI:https://doi.org/10.3329/jhpn.v28i5.6157.