| hepatitis viruses and risk of cholangiocarcinoma in northeast thailand. | liver cancer is the most common cancer in males in thailand and the third in females. a high incidence of cholangiocarcinoma (cca) is estimated in the northeast of thailand. chronic infection with opisthorchis viverrini (ov) is the major risk factor for development of cca. it has been demonstrated that hcv infection is a risk factor for cca in non - endemic area of ov infection. we examined the association of hbv and hcv and risk of cca in the northeast thailand. all cases of cca were recruited ... | 2010 | 21133611 |