passages.id: split_4_test_1750_passage
passages.type: progene_text
passages.text: The percentage of CD3 ( + ) , CD3 ( + ) CD4 ( + ) , CD3 ( + ) CD8 ( + ) , CD3 ( + ) CD45RO ( + ) , CD3 ( + ) CD45RA ( + ) , CD3 ( - ) CD16 ( + ) 56 ( + ) , CD19 ( + ) , and CD14 ( + ) cells in whole blood was examined to determine changes in circulating immune cell populations .