Using immunofluorescent cytochemical technique EBV-VCA-IgA antibody level was studied in 35 cases of nasopharyngeal carcinoma before and after 60Co radiotherapy.

• 用免疫荧光细胞化学方法,对35例经~(60)钴放射治疗的鼻咽癌患者进行了EB病毒VCA-IgA抗体水平动态观察。