title: FDA issues warning letter to Abbott over Norvir pricing spin.
mesh_terms: D016527:Drug Costs / Q000331:legislation & jurisprudence*; D004345:Drug Industry / Q000331:legislation & jurisprudence*; D017320:HIV Protease Inhibitors / Q000191:economics*; D019438:Ritonavir / Q000191:economics*; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D017320:HIV Protease Inhibitors; D019438:Ritonavir