WDHD1 and nasopharyngeal carcinoma: In our research, we searched The Cancer Genome Atlas (TCGA) (https://cancergenome.nih.gov/), Gene Expression Omnibus (GEO) (http://www.ncbi.nlm.nih.gov/geo/), ArrayExpress database (http://www.ebi.ac.uk/arrayexpress/), and related literature, followed by combined bioinformatic and immunohistochemical analysis to obtain a comprehensive picture of WDHD1 expression in NPC.