_:b56449606 . _:b56449606 . _:b56449606 _:b56449608 . _:b56449608 . _:b56449607 "T034" . _:b56449606 "0.83"^^ . _:b56449609 "seropositivity" . _:b56449606 _:b56449607 . _:b56449606 . _:b56449608 _:b56449609 . _:b56449607 "C0019699" . _:b56449609 .