Erratum: Author correction to "Sphingosine-1-phosphate, a novel TREM2 ligand, promotes microglial phagocytosis to protect against ischemic brain injury" [Acta Pharm Sin B 12 (2022) 1885-1898]. - Xue T; Ji J; Sun Y; Huang X; Cai Z; Yang J; Guo W; Guo R; Cheng H; Sun X (Acta pharmaceutica Sinica. B, 2025)