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. 2016 Nov 14;13(1):20–27. doi: 10.1007/s11420-016-9531-7

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© The Author(s) 2016

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted 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. 8 — Temporal changes in revision rates: Kaplan-Meier estimates of cumulative percentage probability of revision for each year of primary operation (from the 2014 report from the National Joint Registry for England, Wales and Northern Ireland, Figure 3.3a www.njrcentre.org.uk).