cell cultures ( greater than 90 % b cells ) from 15 patients with active disease contained significantly higher ( p less than 0.001 ) levels of beta 2m ( 0.22 +/- 0.09 mg/l ) than cultures from 17 patients with inactive cll ( 0.08 +/- 0.06 ) .
C0004561
b cells
C0023434
cll