1. Lavanchy D. Hepatitis B virus epidemiology, disease burden, treatment, and current and emerging prevention and control measures. J Viral Hepat. 2004; 11:97–107.
Article
2. Chae HB, Kim JH, Kim JK, Yim HJ. Current status of liver diseases in Korea: hepatitis B. Korean J Hepatol. 2009; 15(Suppl 6):S13–S24.
Article
3. Jeong S, Yim HW, Bae SH, Lee W. Changes of hepatitis B surface antigen seroprevalence in Korea, 1998–2005. Korean J Epidemiol. 2008; 30:119–127.
Article
4. Chen CJ, Yang HI, Su J, et al. REVEAL-HBV Study Group. Risk of hepatocellular carcinoma across a biological gradient of serum hepatitis B virus DNA level. JAMA. 2006; 295:65–73.
Article
5. Iloeje UH, Yang HI, Jen CL, et al. Risk Evaluation of Viral Load Elevation and Associated Liver Disease/Cancer-Hepatitis B Virus Study Group. Risk and predictors of mortality associated with chronic hepatitis B infection. Clin Gastroenterol Hepatol. 2007; 5:921–931.
Article
6. Iloeje UH, Yang HI, Su J, Jen CL, You SL, Chen CJ. Risk Evaluation of Viral Load Elevation and Associated Liver Disease/Cancer-In HBV (the REVEAL-HBV) Study Group. Predicting cirrhosis risk based on the level of circulating hepatitis B viral load. Gastroenterology. 2006; 130:678–686.
Article
7. European Association For The Study Of The Liver. EASL Clinical Practice Guidelines: management of chronic hepatitis B. J Hepatol. 2009; 50:227–242.
8. Lok AS, McMahon BJ. Chronic hepatitis B. Hepatology. 2007; 45:507–539.
Article
9. Chen JD, Yang HI, Iloeje UH, et al. Risk Evaluation of Viral Load Elevation and Associated Liver Disease/Cancer in HBV (REVEAL-HBV) Study Group. Carriers of inactive hepatitis B virus are still at risk for hepatocellular carcinoma and liver-related death. Gastroenterology. 2010; 138:1747–1754.
Article
10. Yuen MF, Sablon E, Hui CK, Yuan HJ, Decraemer H, Lai CL. Factors associated with hepatitis B virus DNA breakthrough in patients receiving prolonged lamivudine therapy. Hepatology. 2001; 34:785–791.
Article
11. Lai CL, Gane E, Liaw YF, et al. Telbivudine versus lamivudine in patients with chronic hepatitis B. N Engl J Med. 2007; 357:2576–2588.
Article
12. Lai CL, Leung N, Teo EK, et al. A 1-year trial of telbivudine, lamivudine, and the combination in patients with hepatitis B e antigen-positive chronic hepatitis B. Gastroenterology. 2005; 129:528–536.
Article
13. Sherman M, Yurdaydin C, Simsek H, et al. AI463026 Benefits of Entecavir for Hepatitis B Liver Disease (BEHoLD) Study Group. Entecavir therapy for lamivudine-refractory chronic hepatitis B: improved virologic, biochemical, and serology outcomes through 96 weeks. Hepatology. 2008; 48:99–108.
Article
14. Keeffe EB, Dieterich DT, Han SH, et al. A treatment algorithm for the management of chronic hepatitis B virus infection in the United States: an update. Clin Gastroenterol Hepatol. 2006; 4:936–962.
Article
15. Park JH. Hepatitis B virus surface antigen: a multifaceted protein. Korean J Hepatol. 2004; 10:248–259.
16. Arase Y, Ikeda K, Suzuki F, et al. Longterm outcome after hepatitis B surface antigen seroclearance in patients with chronic hepatitis B. Am J Med. 2006; 119:71. e9-e16.
Article
17. Chen YC, Sheen IS, Chu CM, Liaw YF. Prognosis following spontaneous HBsAg seroclearance in chronic hepatitis B patients with or without concurrent infection. Gastroenterology. 2002; 123:1084–1089.
Article
18. Yuen MF, Wong DK, Sablon E, et al. HBsAg seroclearance in chronic hepatitis B in the Chinese: virological, histological, and clinical aspects. Hepatology. 2004; 39:1694–1701.
Article
19. Ahn SH, Park YN, Park JY, et al. Longterm clinical and histological outcomes in patients with spontaneous hepatitis B surface antigen seroclearance. J Hepatol. 2005; 42:188–194.
Article
20. Chu CM, Liaw YF. HBsAg seroclearance in asymptomatic carriers of high endemic areas: appreciably high rates during a long-term follow-up. Hepatology. 2007; 45:1187–1192.
Article
21. Liu J, Yang HI, Lee MH, et al. REVEAL-HBV Study Group. Incidence and determinants of spontaneous hepatitis B surface antigen seroclearance: a community-based follow-up study. Gastroenterology. 2010; 139:474–482.
Article
22. Realdi G, Fattovich G, Hadziyannis S, et al. Survival and prognostic factors in 366 patients with compensated cirrhosis type B: a multicenter study. The Investigators of the European Concerted Action on Viral Hepatitis (EUROHEP). J Hepatol. 1994; 21:656–666.
23. Gish RG, Chang TT, Lai CL, et al. Loss of HBsAg antigen during treatment with entecavir or lamivudine in nucleoside-naïve HBeAg-positive patients with chronic hepatitis B. J Viral Hepat. 2010; 17:16–22.
Article
24. Gish RG, Lok AS, Chang TT, et al. Entecavir therapy for up to 96 weeks in patients with HBeAg-positive chronic hepatitis B. Gastroenterology. 2007; 133:1437–1444.
Article
25. Heathcote EJ, Marcellin P, Buti M, et al. Three-year efficacy and safety of tenofovir disoproxil fumarate treatment for chronic hepatitis B. Gastroenterology. 2011; 140:132–143.
Article
26. Lau GK, Piratvisuth T, Luo KX, et al. Peginterferon Alfa-2a, lamivudine, and the combination for HBeAg-positive chronic hepatitis B. N Engl J Med. 2005; 352:2682–2695.
Article
27. Lee KS, Kim DJ. Guideline Committee of the Korean Association for the Study of the Liver. Management of chronic hepatitis B. Korean J Hepatol. 2007; 13:447–488.
Article
28. Wursthorn K, Lutgehetmann M, Dandri M, et al. Peginterferon alpha-2b plus adefovir induce strong cccDNA decline and HBsAg reduction in patients with chronic hepatitis B. Hepatology. 2006; 44:675–684.
Article
29. Chen CH, Lee CM, Wang JH, Tung HD, Hung CH, Lu SN. Correlation of quantitative assay of hepatitis B surface antigen and HBV DNA levels in asymptomatic hepatitis B virus carriers. Eur J Gastroenterol Hepatol. 2004; 16:1213–1218.
Article
30. Su TH, Hsu CS, Chen CL, et al. Serum hepatitis B surface antigen concentration correlates with HBV DNA level in patients with chronic hepatitis B. Antivir Ther. 2010; 15:1133–1139.
Article
31. Chan HL, Wong VW, Wong GL, Tse CH, Chan HY, Sung JJ. A longitudinal study on the natural history of serum hepatitis B surface antigen changes in chronic hepatitis B. Hepatology. 2010; 52:1232–1241.
Article
32. Chan HL, Wong VW, Tse AM, et al. Serum hepatitis B surface antigen quantitation can reflect hepatitis B virus in the liver and predict treatment response. Clin Gastroenterol Hepatol. 2007; 5:1462–1468.
Article
33. Thompson AJ, Nguyen T, Iser D, et al. Serum hepatitis B surface antigen and hepatitis B e antigen titers: disease phase influences correlation with viral load and intrahepatic hepatitis B virus markers. Hepatology. 2010; 51:1933–1944.
Article
34. Wursthorn K, Jung M, Riva A, et al. Kinetics of hepatitis B surface antigen decline during 3 years of telbivudine treatment in hepatitis B e antigen-positive patients. Hepatology. 2010; 52:1611–1620.
Article
35. Tangkijvanich P, Komolmit P, Mahachai V, Sa-nguanmoo P, Theamboonlers A, Poovorawan Y. Low pretreatment serum HBsAg level and viral mutations as predictors of response to PEG-interferon alpha-2b therapy in chronic hepatitis B. J Clin Virol. 2009; 46:117–123.
Article
36. Wong VW, Wong GL, Yan KK, et al. Durability of peginterferon al-fa-2b treatment at 5 years in patients with hepatitis B e antigen-positive chronic hepatitis B. Hepatology. 2010; 51:1945–1953.
Article
37. Moucari R, Mackiewicz V, Lada O, et al. Early serum HBsAg drop: a strong predictor of sustained virological response to pegylated interferon alfa-2a in HBeAg-negative patients. Hepatology. 2009; 49:1151–1157.
Article
38. Sonneveld MJ, Rijckborst V, Boucher CA, Hansen BE, Janssen HL. Prediction of sustained response to peginterferon alfa-2b for hepatitis B e antigen-positive chronic hepatitis B using on-treatment hepatitis B surface antigen decline. Hepatology. 2010; 52:1251–1257.
Article
39. Brunetto MR, Moriconi F, Bonino F, et al. Hepatitis B virus surface antigen levels: a guide to sustained response to peginterferon alfa-2a in HBeAg-negative chronic hepatitis B. Hepatology. 2009; 49:1141–1150.
Article
40. Manesis EK, Hadziyannis ES, Angelopoulou OP, Hadziyannis SJ. Prediction of treatmentrelated HBsAg loss in HBeAG-negative chronic hepatitis B: a clue from serum HBsAg levels. Antivir Ther. 2007; 12:73–82.
41. Cai W, Xie Q, An B, et al. On-treatment serum HBsAg level is predictive of sustained off-treatment virologic response to telbivudine in HBeAg-positive chronic hepatitis B patients. J Clin Virol. 2010; 48:22–26.
Article
42. Jung YK, Kim JH, Lee YS, et al. Change in serum hepatitis B surface antigen level and its clinical significance in treatmentnaïve, hepatitis B e antigen-positive patients receiving entecavir. J Clin Gastroenterol. 2010; 44:653–657.
Article
43. Reijnders JG, Rijckborst V, Sonneveld MJ, et al. Kinetics of hepatitis B surface antigen differ between treatment with peginterferon and entecavir. J Hepatol. 2011; 54:449–454.
Article