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Original Article

Development and Verification of a “Virtual” Cohort Using the National VA Health Information System

Fultz, Shawn L. MD, MPH*; Skanderson, Melissa MSW; Mole, Larry A. PharmD; Gandhi, Neel MD§; Bryant, Kendall PhD; Crystal, Stephen PhD; Justice, Amy C. MD, PhD*

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doi: 10.1097/01.mlr.0000223670.00890.74
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