Association between urine microscopy and severe acute kidney injury in critically ill patients following non-cardiac surgery: a prospective cohort study - Li, Nan; Zhou, Wei-Jie; Chi, Dong-Xuan; Yuan, Cui; Xie, Min; Li, Zhuo; Wang, Run; Qu, Chen-Xue; Li, Xue-Ying; Li, Shuang-Ling; Yang, Li (Annals of Palliative Medicine, 2022)