Roth, D. E., Shah, M. R., Black, R. E., & Baqui, A. H. (2010). Vitamin D Status of Infants in Northeastern Rural Bangladesh: Preliminary Observations and a Review of Potential Determinants. Journal of Health, Population and Nutrition, 28(5), 458–469. https://doi.org/10.3329/jhpn.v28i5.6154