Medicare fraud probes increase in wake of Columbia/HCA problems.
D005607:Fraud / Q000331:legislation & jurisprudence*; D006777:Hospitals, Proprietary / Q000331:legislation & jurisprudence; D007344:Insurance Claim Reporting / Q000331:legislation & jurisprudence*; D006278:Medicare; D009096:Multi-Institutional Systems / Q000331:legislation & jurisprudence; D014481:United States