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. Author manuscript; available in PMC: 2010 Apr 26.
Published in final edited form as: Health Aff (Millwood). 2009 Feb 3;28(2):w317–w325. doi: 10.1377/hlthaff.28.2.w317

EXHIBIT 4. Percentage Of Elderly Medicare Beneficiaries Reaching The “Doughnut Hole” In Each Month, Among Those In Part D Plans With Total Drug Spending Greater Than $2,250 In 2006, With Hypertension Or Diabetes.

EXHIBIT 4

SOURCE: Authors’ calculations using study population as described in the text.