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Limitations of Using Billing Databases in an Attempt to Compare Cataract Surgery Outcomes in Veterans Health Administration Versus Medicare

Daly, Mary K. MD; Lynch, Mary G. MD; Chomsky, Amy MD; Lawrence, Mary G. MD, MPH; Palmer, Millicent MD; Siracuse-Lee, Donna MD

doi: 10.1097/MLR.0b013e31826b750b
Letters to the Editor