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Assessment of Vitamin A Status of Preschool Children in a Sub-Saharan African Setting: Comparative Advantage of Modified Relative-dose Response Test
A nationally-representative sample of 2,696 preschool children living in Congo was examined during August-September 2003 to determine the rates of vitamin A deficiency. Ninety clusters of 30 children, aged six months to six years, were selected, using a randomized two-level cluster-sampling method....
Autores principales: | , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
International Centre for Diarrhoeal Disease Research, Bangladesh
2010
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2963771/ https://www.ncbi.nlm.nih.gov/pubmed/20941900 |