1. M. C. Latham , in Nutrición humana en el mundo en desarrollo , FAO , New York, USA , 2002 , ch. 10
2. L. R. McDowell , in Minerals in Animal and Human Nutrition , Elsevier Science , Amsterdam , 2nd edn, 2003 , p. 660
3. Human Zinc Deficiency
4. The role of zinc in the growth and development of children