title: [An investigation on the relation of dysplastic epithelial changes to the histogenesis of nasopharyngeal carcinoma(NPC)].
mesh_terms: D004848:Epithelium / Q000473:pathology; D006801:Humans; D006965:Hyperplasia / Q000473:pathology; D008679:Metaplasia / Q000473:pathology; D009303:Nasopharyngeal Neoplasms / Q000473:pathology*; D009305:Nasopharynx / Q000473:pathology*