1. Changing pattern of hepatitis viral infection in Saudi Arabia in the last two decades;Al-Faleh;Ann Saudi Med,2003
2. Integration of hepatitis B vaccine into the expanded program on immunization: the Saudi Arabian experience;Al-Faleh;Ann Saudi Med,1993
3. The decline of HBV viral infection in South-Western Saudi Arabia;Ayoola;Saudi Med J,2003
4. Long-term protection of hepatitis B vaccine 18 years after vaccination;Al-Faleh;J Infect,2008
5. Health statistic year book;The Saudi Ministry of Health,2013