Association between blood urea nitrogen-to-creatinine ratio and all-cause mortality in critically ill patients with sepsis: an analysis based on the MIMIC-IV database: Bun/creatinine ratio and mortality in sepsis. Indian J Exp Biol [Internet]. 2026 Jul. 21 [cited 2026 Jul. 23];64(08):727-39. Available from: https://or.niscpr.res.in/index.php/IJEB/article/view/27481