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. 2016 Mar 16;3(1):107–114. doi: 10.1007/s40801-016-0063-8

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — Calculating the total incremental burden (direct and indirect costs) associated with rheumatoid arthritis (RA) by differencing the costs of the RA cohort with the non-RA cohort matched 1:4 on age, gender, and level of urbanization