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. 2018 Jul 5;11:1178632918785133. doi: 10.1177/1178632918785133

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© The Author(s) 2018

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 3. — Bias (top) and coverage of the 95% confidence interval (bottom) of B_A and B_C for differing provider volumes. The total sample size was fixed to 10 000. Different line colors represent the different risk adjustment methods used.