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. 2009 Jun 1;91(6):1295–1304. doi: 10.2106/JBJS.H.00913

Fig. 2.

Fig. 2

Intent-to-treat (ITT) compared with as-treated (AT) analysis for the SF-36 bodily pain and physical function scores and the Oswestry Disability Index. RC = randomized cohort. Error bars indicate the 95% confidence intervals.