title: ProPAC recommends PPS improvements for 1990.
mesh_terms: D000556:Ambulatory Surgical Procedures / Q000191:economics; D006801:Humans; D006278:Medicare; D011444:Prospective Payment Assessment Commission; D011445:Prospective Payment System / Q000331:legislation & jurisprudence*; D011787:Quality of Health Care; D014481:United States; D014483:United States Dept. of Health and Human Services