Uncle Sam plays new games with medical statistics.
Stevens
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D002387:Cataract Extraction / Q000706:statistics & numerical data*; D003627:Data Interpretation, Statistical; D009885:Ophthalmology / Q000592:standards*; D011787:Quality of Health Care / Q000706:statistics & numerical data*; D014481:United States; D014483:United States Dept. of Health and Human Services