References :
1.Nutritive Value of Foods, United States Department of Agriculture, Agricultural Research Service, Home and Garden Bulletin Number 72. May be accessed at: https://www.ars.usda.gov/SP2UserFiles/Place/12354500/Data/SR25/nutrlist/sr25w312.pdf and http://www.nal.usda.gov/fnic/foodcomp/Data/HG72/hg72_2002.pdf
2.Brewer GJ, Kaur S. Zinc Deficiency and Zinc Therapy Efficacy with Reduction of Serum Free Copper in Alzheimer’s Disease. Int J Alzheimers Dis. 2013;2013:586365. Epub 2013 Oct 10. http://www.ncbi.nlm.nih.gov/pubmed/24224111
3.Kobayashi Y, Hatta Y. Copper deficiency anaemia. Br J Haematol. 2013 Oct 14. http://www.ncbi.nlm.nih.gov/pubmed/24117099