title: GAO calls for refinement of rehab "75 Percent Rule".
mesh_terms: D000368:Aged; D014487:Centers for Medicare and Medicaid Services, U.S.; D004608:Eligibility Determination; D033161:Government Regulation; D006801:Humans; D007349:Insurance, Health, Reimbursement; D006278:Medicare / Q000331:legislation & jurisprudence*; D011057:Politics; D012047:Rehabilitation Centers / Q000145:classification* / Q000191:economics*; D014481:United States