cell fusion experiments using epstein-barr virus ( ebv ) obtained from nasopharyngeal carcinoma ( npc ) hybrid cells ( npc-kt ) were carried out to examine whether human adenoid epithelial cells ( ad-ah ) could be fused with lymphoblastoid cells ( bjab , raji , and a2l ) superinfected or infected by ebv , and if ad-ah nuclei of the fused cells could express ebv-associated nuclear antigen .
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cells
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nuclei of