2Brettler DB, Mannucci PM ,Gringeri A, et al. The low risk of hepatitis C virus transimisson among partners of hepatitis C infected hemophilic male : an internation multicenter study. Blood, 1992,80:540 - 543.
3Hagiwara H, Hayashi N, Miat E,et al. Dectection of HCV RNA in serum of pation with chronic hepatitis C treated with interferon-alpha. Hepatology, 1992,15 : 37 - 41.