in contrast the antibodies ck-7 ( ker-7-specific ) , ck-2 ( ker-18-specific ) and ka-4 ( ker-19-specific in liver ) allow these neoplasms to be divided into three groups : hepatocellular carcinomas were ck-2-positive and ck-7-negative .
C0023884
liver
C2239176
hepatocellular carcinomas