title: Operating in reverse. Audit firms seek treasure buried in old invoices.
authors: P B
authors: PB
authors: Limbacher
mesh_terms: D003132:Commerce / Q000639:trends; D003284:Contract Services / Q000191:economics*; D017046:Cost Savings / Q000379:methods; D005375:Financial Audit / Q000458:organization & administration*; D006268:Health Facilities / Q000191:economics*; D013660:Taxes / Q000331:legislation & jurisprudence; D014481:United States