tokens: Three aspects of the involvement of tumor necrosis factor in human immunodeficiency virus ( HIV ) pathogenesis were examined .
folded_tokens: three aspects of the involvement of tumor necrosis factor in human immunodeficiency virus ( hiv ) pathogenesis were examined .
labels: O O O O O O B-protein_molecule I-protein_molecule I-protein_molecule O B-virus I-virus I-virus O B-virus O O O O O