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. 2015 Dec 14;16:386. doi: 10.1186/s12891-015-0842-5

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© Ludwig et al. 2015

Open AccessThis 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. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Effect of PRG4 concentration on cartilage boundary lubricating ability. μ_static,Neq for PRG4 low dose (Test 1A, a), and PRG4 high dose (Test 1B, b). <μ_kinetic,Neq > at Tps = 1.2 s (c) for PRG4 high and low dose response + constant [HA] = 3.3 mg/mL (Tests 1A, 1B). Average < μ_kinetic,Neq > in PBS and SF shown in grey for reference. * = significantly higher than SF (p < 0.05)