Sulaiman, Andri Sanityoso, et al. “Hepatitis B Virus Double Mutations Is There Any Role in Pathogenesis of Hepatocellular Carcinoma in Young Patients”. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy, vol. 10, no. 3, Jan. 2009, pp. 96-98, doi:10.24871/103200996-98.