Corrigendum to "Ikappa B kinase alpha involvement in the development of nasopharyngeal carcinoma through a NF-κB-independent and ERK-dependent pathway" [Oral Oncol. 49 (2013) 1113–1120]. Issue 7 (July 2015) - Xie, Yuxin; Li, Yan; Peng, Xingchen; Henderson, Fraser; Deng, Ling; Chen, Nianyong