@article{Perz2006, author = {Perz, J.F. and Armstrong, G.L. and Farrington, L.A. and Y.J.F., Hutin and Bell, B.P. }, title= {The contributions of Hepatitis B virus and Hepatitis C virus infections to cirrhosis and primary liver cancer worldwide}, year = {2006}, doi = {10.1016/j.jhep.2006.05.013}, journal = {Journal of Hepatology }, volume = {45}, number = {4}, pages = {529--538}, }