1. 1. World Health Organization. Iron deficiency anemia. Assessment, prevention, and control. A guide for programme managers. 2001. Available at: https://cir.nii.ac.jp/crid/1571698600973264896. Accessed on: 10 October 2022.
2. 2. World Health Organization. Reducing risks, promoting healthy life. World health report 2002. Available at: https://cir.nii.ac.jp/crid/1571698599249153536. Accessed on: 10 October 2022.
3. 3. Garcia–Casal MN, Pasricha SR, Sharma AJ, et al. Use and interpretation of hemoglobin concentrations for assessing anemia status in individuals and populations: Results from a WHO technical meeting. Ann N Y Academy Sci 2019;1450(1):5–14. DOI: 10.1111/nyas.14090.
4. 4. Sharma JB, Shankar M. Anemia in pregnancy. JIMSA 2010;23(4): 253–260.
5. 5. Kalaivani K. Prevalence and consequences of anaemia in pregnancy. Indian J Med Res 2009;130(5):627–633. PMID: 20090119.