1. WHO. Guideline for prevention,care,and treatment of person with chronic HB infection WHO. Available from:http://www.who.int/hiv/topics/hepatitis/en/978. Accessed November 10,-2018.
2. WHO. World Health Organizaton Hepatitis B Manual for care WHO. 2018. Available from: http://www.who.int/hepatitis/Cdr/lyo. Accessed November 10,-2018.
3. WHO. Pevention, Care and Treatmant of Viral hepatitis in the Africa region: frameworkfor Action,2016-2020. Available from: http://apps.who.int/iris. Accessed November 11,-2018.
4. WHO. Global Hepatitis Report.world Health Organization. world Health Organizazation; 2018.
5. Hepatitis B virus infection in an HBsAb-positive lymphoma patient who received chemotherapy