1. Worldwide Prevalence of Anaemia 1993–2005: WHO Global Database on Anemia;de Benoist,2008
2. Haemoglobin concentrations for the diagnosis of anaemia and assessment of severity. Vitamin and Mineral Nutrition Information System;WHO,2011
3. Iron requirements in pregnancy and strategies to meet them;Bothwell;Am J Clin Nutr,2000
4. The reproductive ecology of iron in women;Miller;Am J Phys Anthropol,2016
5. CDC criteria for anaemia in children and childbearing-aged women;CDC;Morb Mortal Wkly Rep,1989