_:b56954952 . _:b56954952 _:b56954953 . _:b56954953 . _:b56954950 "0.83"^^ . _:b56954950 . _:b56954950 . _:b56954950 _:b56954952 . _:b56954953 "CD4 cell count" . _:b56954951 "C0039215" . _:b56954950 _:b56954951 . _:b56954951 "T025" . _:b56954950 .