Cost deal for HIV tests.
D000349:Africa / Q000453:epidemiology; D018791:CD4 Lymphocyte Count / Q000191:economics*; D017691:Caribbean Region / Q000453:epidemiology; D003363:Cost Control; D004345:Drug Industry / Q000191:economics*; D015658:HIV Infections / Q000175:diagnosis* / Q000453:epidemiology; D006801:Humans; D019562:Viral Load / Q000191:economics*