Association between the lactate-to-albumin ratio (LAR) index and risk of acute kidney injury in critically ill patients with sepsis: analysis of the MIMIC-IV database - Hua, Yiming; Ding, Ning; Jing, Huaizhi; Xie, Yifei; Wu, Hao; Wu, Yue; Lan, Beidi (Frontiers in Physiology, 2025)