title: Free tests.
mesh_terms: D015497:HIV-1 / Q000302:isolation & purification*; D006297:Health Services Accessibility; D006801:Humans; D007182:Income; D016133:Polymerase Chain Reaction; D011933:Reagent Kits, Diagnostic; D012648:Self Care; D014481:United States; D019562:Viral Load
chemical_list: D011933:Reagent Kits, Diagnostic