title: [Improvement in the diagnostic technics of atypical nasopharyngeal carcinoma].
mesh_terms: D001707:Biopsy, Needle; D003581:Cytodiagnosis / Q000379:methods; D006801:Humans; D006861:Hydrogen Peroxide; D009303:Nasopharyngeal Neoplasms / Q000175:diagnosis*; D009305:Nasopharynx / Q000473:pathology*
chemical_list: D006861:Hydrogen Peroxide