Prognostic significance of fibrinogen levels in sepsis-associated acute kidney injury: unveiling a nonlinear relationship and clinical implications - Chen, Manqin; Chen, Xinbin; Ling, Huaxiang; Bai, Chengwen; Chen, Lihua; Zhong, Lin; Gong, Ping; Shi, Fei (Frontiers in Nephrology, 2024)