7Uenishi T,Kubo S,Hirohashi K,et al.Cytokeratin-19 fragments in serum (CYFRA21-1) as a marker in primary liver cancer.Brit J Cancer.2003,88:1894.
8Carpelan-Holmstrom M,Louhimo J,Stenman U,et al.CEA,CA242,CA19-9,CA72 -4 and hCGβ in the diagnosis of recurrent colorectal cancer.Tumor Biol.2004,25:228.
