tokens: The observed E1a reiterations provide a model to gain insight into understanding the evolutionary events of some , if not all , adenovirus types during many years of symbiotic , persistent relationship in human tonsils and adenoids and possibly other lymphoid organs .
folded_tokens: the observed e1a reiterations provide a model to gain insight into understanding the evolutionary events of some , if not all , adenovirus types during many years of symbiotic , persistent relationship in human tonsils and adenoids and possibly other lymphoid organs .
labels: O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O O O O O O O O O O B-virus I-virus O O O O O O O O O B-body_part I-body_part O B-body_part O O O B-body_part I-body_part O