the relation between chronic lymphocytic leukemia ( cll , lymphocytic lymphoma ( sl ) , plasmacytoid lymphocytic lymphoma ( lp ) , plasmacytoma ( pl ) , and multiple myeloma ( mm ) was investigated with cryostat sections stained with antibodies to immunoglobulin heavy and light chains and the b-cell differentiation antigens b1 , b2 , ia , t1 , and calla .
C0003241
antibodies
C0021027
immunoglobulin