tokens: Adenovirus ( Ad ) infection and E1A transfection were used to model changes in susceptibility to NK cell killing caused by transient vs stable E1A expression in human cells .
folded_tokens: adenovirus ( ad ) infection and e1a transfection were used to model changes in susceptibility to nk cell killing caused by transient vs stable e1a expression in human cells .
labels: B-virus O O O O O B-protein_molecule O O O O O O O O O B-other_name I-other_name I-other_name O O O O O B-protein_molecule O O B-cell_type I-cell_type O