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. 2017 Oct 15;3(4):38. doi: 10.3390/gels3040038

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Photographs of hydrogels (a) F(P1), (b) F(P1/D+PA₄₀) 25 days after subcutaneous injection in rats. The values indicate the number of rats harboring hydrogel/all rats.