The safety window of blood magnesium in pulmonary complications of non-pulmonary sepsis: A U-shaped risk and prognostic analysis based on MIMIC-IV - Taotao Peng; Yu Li; Yukun Ren; Mi Yang; Zonghong Long; Dukun Zuo; Lu Huang; Huawei Liu; Zhenxin Duan; Hong Li (PLoS ONE, 2026)