J. Kumar, H. Mumtaz, A. Zahoor, N. Sarwar, K. Kumar, and S. Ahmad, “Mortality among Critically Ill Acute Kidney Injury Patients Stratified with RIFLE Classification”, jrenhep, vol. 5, no. 1, pp. 1–5, Jan. 2021, doi: 10.15586/jrenhep.v5i1.89.