a concurrent study of specificity , regulation , ontogeny , and genetics of murine natural killer ( nk ) cell and natural antibody ( nab ) activities [ in dba/2 , cba/j , a/sn , and a/j inbred mice , bg/bg + mice of the inbred c57bl/6j background , ( c57bl/6 x dba/2 ) f1 mice , and ( cba x dba/2 ) f1 , ( a/sn x dba/2 ) f1 , and ( a/j x dba/2 ) f1 mice ] revealed that : a ) the expressions of nab and nk cell specificities associated with the yac-1 tumor were directly related and could not be distinguished on the basis of inhibition and absorption studies , whereas the expressions of the specificities associated with a second nk cell-sensitive tumor , the sl2 lymphoma , were not directly related .
C0027651
tumor
C0085183
second