Ahmed, F. ., Paul, P. ., Hasan, R. ., Habib, R. ., Gain, G. ., & Kabir, M. A. . (2021). The Concentration of 25-Hydroxy Vitamin D in Chronic Liver Disease and its’ Correlation with Severity. Bangladesh Medical Journal, 49(3), 35–42. https://doi.org/10.3329/bmj.v49i3.56079