1. Prevalence and treatment of hepatitis C virus genotypes 4, 5, and 6;Nguyen;Clin Gastroenterol Hepatol,2005
2. Genetic diversity and evolution of hepatitis C virus - 15 years on;Simmonds;J Gen Virol,2004
3. http://www.mohp.gov.eg/Main.asp
4. Hepatitis C virus (HCV) infection in a community in the nile delta;Abdel-Aziz;population description and HCV prevalence,2000