[Clinical analysis and long-term follow up study of asymptomatic nasopharyngeal carcinoma patients].


OBJECTIVE To observe the character of Epstein-Barr(EB) virus serology, fibroscopy appearance and prognosis of asymptomatic nasopharyngeal carcinoma(NPC). METHODS Viral capsid antigen's IgA (VCA/IgA) of EB virus and early antigen's IgA(EA/IgA) of EB virus were detected by immunoenzymatic method. The clinical examination was carried out, including indirect… (More)


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