Corrigendum: Development and validation of nomogram models for predicting immune-related adverse events in recurrent and metastatic nasopharyngeal carcinoma patients treated with PD-L1 inhibitors - Mengyuan Liu; Zheran Liu; Shuangshuang He; Yiyan Pei; Shihong Xu; Junyou Ge; Yan Qing; Youneng Wei; Ye Chen; Ping Ai; Xingchen Peng (Frontiers in Oncology)