title: MedPAC wary of some OPPS components.
mesh_terms: D000368:Aged; D006801:Humans; D006278:Medicare / Q000191:economics*; D020406:Medicare Payment Advisory Commission; D010044:Outpatient Clinics, Hospital / Q000191:economics*; D011057:Politics; D011445:Prospective Payment System; D014481:United States