Haque, Rashidul, Tanvir Ahmed, MA Wahed, Dinesh Mondal, ASM Hamidur Rahman, and M John Albert. 2010. “Low-Dose β-Carotene Supplementation and Deworming Improve Serum Vitamin A and Β-Carotene Concentrations in Preschool Children of Bangladesh”. Journal of Health, Population and Nutrition 28 (3):230-37. https://doi.org/10.3329/jhpn.v28i3.5549.