1. Allen L, World Health Organization, Food and Agriculture Organization of the United Nations (2006) Guidelines on food fortification with micronutrients. Geneva; Rome: World Health Organization; Food and Agriculture Organization of the United Nations.
2. Copper;JF Collins;Adv Nutr,2011
3. Soils and geomedicine;E Steinnes;Environ Geochem Health,2009
4. Biofortifying crops with essential mineral elements;PJ White;Trends Plant Sci,2005
5. Ruston D, Great Britain. Office for National Statistics. Social Survey Division, Medical Research Council. Human Nutrition Research, Great Britain. Food Standards Agency (2004) The national diet & nutrition survey: adults aged 19 to 64 years: volume 4: nutritional status (anthropometry and blood analytes), blood pressure and physical activity. London: TSO.