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. Author manuscript; available in PMC: 2009 Oct 22.
Published in final edited form as: Health Aff (Millwood). 2008 Nov–Dec;27(6):1491–1502. doi: 10.1377/hlthaff.27.6.1491

EXHIBIT 6. Number Of Repeat Imaging Tests Within One Year Among Enrollees Who Underwent Abdominal Or Central Nervous System (CNS) Imaging, 1997-2006.

EXHIBIT 6

SOURCE: Group Health Cooperative data.