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. 2014 Feb 25;9:1127–1138. doi: 10.2147/IJN.S56756

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© 2014 Hu et al. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License

The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.

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Plasminogen activator inhibitor 1 (PAI-1), substance P (SP), and substance P receptor (SP-R) levels in rats at day 90 and day 180 after insertion (optical density [OD], mean ± standard deviation).

Notes: Compared with the sham-operated control group, *P<0.05. Compared with the copper (Cu) group, ^▲P<0.05.

Abbreviations: SO, sham-operated control group; LDPE, low-density polyethylene; d, days.