1. World Health Organization, Centers for Disease Control and Prevention: Worldwide Prevalence Of Anaemia 1993–2005. WHO Global Database on Anaemia. Edited by: Benoist B, McLean E, Egli I, Cogswell M. 2008, Geneva: World Health Organization
2. World Health Organization, United Nations Children’s Fund, United Nations University: Iron Deficiency Anaemia Assessment, Prevention, And Control: A Guide For Programme Managers. 2001, Geneva: World Health Organization
3. UNICEF, Nutrition Wing Planning Commission Government of Pakistan, Aga Khan University: National Nutrition Survey Pakistan. 2011
4. Murray-Kolb LE, Chen L, Chen P, Shapiro M, Caulfield L: CHERG iron report: maternal mortality, child mortality, perinatal mortality, child cognition, and estimates of prevalence of anemia due to iron deficiency. [cited September 4, 2014]; Available from: cherg.org/publications/iron-report.pdf
5. Murphy JF, Newcombe RG, O'Riordan J, Coles EC, Pearson JF: Relation of haemoglobin levels in first and second trimesters to outcome of pregnancy. Lancet. 1986, 327 (8488): 992-995. 10.1016/S0140-6736(86)91269-9.