Corrigendum: Efficacy and safety of PD-1/PD-L1 inhibitors as first-line treatment for esophageal squamous cell carcinoma: a systematic review and meta-analysis - Ren, Wei; Zhang, Hanyu; Li, Yixin; Sun, Wu; Peng, Hexiang; Guo, Huangda; Hou, Tianjiao; Wang, Mengying; Hu, Zhendong; Wu, Tao; Liu, Baorui (Frontiers in Immunology, 2025)