tokens: The gene encoding the Epstein-Barr virus ( EBV ) -specific dUTPase was amplified from virus DNA by PCR .
folded_tokens: the gene encoding the epstein-barr virus ( ebv ) -specific dutpase was amplified from virus dna by pcr .
labels: O O O O B-virus I-virus O B-virus O O O O O O B-DNA_family_or_group I-DNA_family_or_group O B-other_name O