Speed and convenience aren't everything with diagnostics.
D003365:Costs and Cost Analysis; D015658:HIV Infections / Q000175:diagnosis; D006801:Humans; D016133:Polymerase Chain Reaction / Q000191:economics / Q000379:methods; D011933:Reagent Kits, Diagnostic / Q000191:economics; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis*; D014944:World Health Organization
D011933:Reagent Kits, Diagnostic