https://pubmed.ncbi.nlm.nih.gov/15883432/

https://pubmed.ncbi.nlm.nih.gov/17413103/

https://pubmed.ncbi.nlm.nih.gov/9808223/

https://pubmed.ncbi.nlm.nih.gov/10584052/

https://pubmed.ncbi.nlm.nih.gov/15321812/

https://pubmed.ncbi.nlm.nih.gov/16210712/

https://ift.onlinelibrary.wiley.com/doi/abs/10.1111/j.1541-4337.2010.00146.x

#disease 
#nutritional_status 
#vitamin_a 
#beta_carotene
#vegetables 
#fruit 
#carotenoids
#children 
#nutrition