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An enigma: why vitamin A supplementation does not always reduce mortality even though vitamin A deficiency is associated with increased mortality
Background: Vitamin A deficiency (VAD) is associated with increased mortality. To prevent VAD, WHO recommends high-dose vitamin A supplementation (VAS) every 4–6 months for children aged between 6 months and 5 years of age in countries at risk of VAD. The policy is based on randomized clinical trial...
| Autores principales: | , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Oxford University Press
2015
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4521135/ https://www.ncbi.nlm.nih.gov/pubmed/26142161 http://dx.doi.org/10.1093/ije/dyv117 |