Brazil / Treatment Outcome / Humans / Markov chains / Adult / Public health systems and services research / Analysis of Variance / Cost Benefit Analysis / Disease Progression / Hepatitis B virus / Lamivudine / Adenine / Antiviral Agents / Public health systems and services research / Analysis of Variance / Cost Benefit Analysis / Disease Progression / Hepatitis B virus / Lamivudine / Adenine / Antiviral Agents