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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Ophthalmology. 2009 Jul 18;116(10):1937–1942. doi: 10.1016/j.ophtha.2009.03.012

Figure 1.

Figure 1

Differences in prevalence of visual impairment by duration and period of diagnosis of type 1 diabetes mellitus in the Wisconsin Epidemiologic Study of Diabetic Retinopathy. *CNE=cannot estimate (defined by < 50 persons at risk)