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. Author manuscript; available in PMC: 2016 Jan 31.
Published in final edited form as: Cochrane Database Syst Rev. 2015 Jan 31;1:CD006127. doi: 10.1002/14651858.CD006127.pub2

Analysis 1.1.

Analysis 1.1

Comparison 1 Blood pressure control versus no (or less) control by type of diabetes, 4 to 5 years, Outcome 1 Incidence of retinopathy at 4 to 5 years.