the mean spontaneous natural killer ( nk ) cell activity in lpl ( 1.7 x 10 ( 2 ) cytotoxic units ( c.u . ) /10 ( 5 ) cells ) was very low in contrast to that found in peripheral blood mononuclear cells ( pbmc ) ( 38.5 x 10 ( 2 ) c.u./10 ( 5 ) cells ) .
C1321301
peripheral blood mononuclear cells
C0007634
cells