three groups of patients with immunoproliferative disorders ( 15 multiple myeloma , 11 non-hodgkin 's lymphoma , 21 chronic lymphocytic leukemia ) were studied by immunological characterization and compared to a group of 20 normal subjects ( controls ) using anti-immunoglobulin coated polyacrylamide beads ( t-b quantigen test , qt ) , erythrocyte rosettes ( er ) , surface immunoglobulin ( sig ) , and monoclonal antibodies for t and b cells ( okt3 ; okt11 ; okt8 ; okt4 ; iadr ) ;
C0023434
chronic lymphocytic leukemia
C0004561
b cells