_:b57648296 . _:b57648296 _:b57648297 . _:b57648295 "T026" . _:b57648297 . _:b57648294 _:b57648296 . _:b57648295 "C2754989" . _:b57648294 . _:b57648297 "IgA antibody" . _:b57648294 . _:b57648294 . _:b57648294 _:b57648295 . _:b57648294 "0.81"^^ .