cells from the peripheral blood of b-cell chronic lymphocytic leukaemia ( cll ) patients were examined serologically for the expression of cell surface mhc class ii antigens with monoclonal antibodies ( mabs ) specific for the products of hla-dp , -dq and -dr genes , and mrnas from the cells of three patients were analysed with a cdna probe specific for dr beta chain genes .
C0699040
of cell surface
C0007634
cells