tokens: To test this hypothesis , a more sensitive and specific polymerase chain reaction ( PCR ) assay was developed to detect adenovirus DNA .
folded_tokens: to test this hypothesis , a more sensitive and specific polymerase chain reaction ( pcr ) assay was developed to detect adenovirus dna .
labels: O O O O O O O O O O B-other_name I-other_name I-other_name O B-other_name O O O O O O B-virus O O