Ahmed, F. ., Paul, P. ., Hasan, R. ., Habib, R. ., Gain, G. . and 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), pp. 35–42. doi: 10.3329/bmj.v49i3.56079.