passages.id: split_4_test_2728_passage
passages.type: progene_text
passages.text: Flow cytometry revealed that NK cell numbers were increased among hepatic mononuclear cells in malignancy compared to histologically normal livers ( mean : 38 % vs 27 % ; P = 0.03 ) , but CD56 ( + ) T cell numbers were not ( 28 % vs 27 % ) .