1. http://www.who.int/mediacentre/news/releases/2015/hepatitis-b-guideline/en/
2. Chisari FV, Ferrari C. Viral Hepatitis. In: Nathanson N, editors. Viral Pathogenesis. Philadelphia: Lippincott; 1997:745-778.
3. Ganem D, Schneider RJ. Hepadnaviridae: The Viruses and Their Replication. In: Knipe DM, editors. Fields Virology. 4th ed. Philadelphia: Lippincott Williams & Wilkins; 2001:2923-2969.
4. Zuckerman AJ. Hepatitis Viruses. In: Medical Microbiology. USA: Barron; 1996.
5. Weinbaum CM, Williams I, Mast EE, et al. Recommendations for identification and public health management of persons with chronic hepatitis B virus infection. Hepatology. 2009;49(5 Suppl):S35-44.