title: 3TC rules change again.
mesh_terms: D000998:Antiviral Agents / Q000600:supply & distribution / Q000627:therapeutic use*; D018791:CD4 Lymphocyte Count; D015658:HIV Infections / Q000188:drug therapy*; D015276:Health Care Rationing; D006292:Health Priorities; D006801:Humans; D019259:Lamivudine; D010593:Pharmaceutical Services; D014481:United States; D016047:Zalcitabine / Q000031:analogs & derivatives / Q000600:supply & distribution / Q000627:therapeutic use*
chemical_list: D000998:Antiviral Agents; D019259:Lamivudine; D016047:Zalcitabine