There was no statistically significant difference between the 2 groups in terms of gender, age, Eastern Cooperative Oncology Group performance status (ECOG PS), pretreatment CP class, American Joint Committee on Cancer (AJCC) stage, the level of alpha-fetoprotein (AFP), the presence or absence of hepatitis, liver cirrhosis and portal vein tumor thrombosis (PVTT), prior treatment and treatment after RT (Table 1). The gene discussed is AFP; the disease is cirrhosis of liver.