Medicare – Trends in Beneficiaries Served and Hospital Resources Used in Implantable Medical Device Procedures, GAO-12-583R, May 14, 2012 Patient Protection and Affordable Care Act – IRS Managing Implementation Risks, but Its Approach Could Be Refined, GAO-12-690, June 13, 2012 Government Operations – Government Is Analyzing Alternatives for Contractor Identification Numbers, GAO-12-715R, June 12, 2012 Continue Reading