Elbarbary, H. S., El Arbagy, A. R., Kora, M. A. and Soliman, M. M. (2014) “Study of serum 25-hydroxyvitamin D in critically ill patients with acute kidney injury”, JOURNAL OF ADVANCES IN BIOLOGY, 6(1), pp. 825–834. doi: 10.24297/jab.v6i1.5465.