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. 2019 Apr 3;20(7):1655. doi: 10.3390/ijms20071655

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© 2019 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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Fluorescent immunostaining for CK3 (red) and CK15 (green) on the limbal area of rabbit corneas after healing of the epithelial defect. Corneas were treated with s-PRGF, s-PRGF and NaHA, NaHA, or PBS (as a control) and were processed 7 and 30 days after cornea surgery. Control corresponds to a healthy rabbit cornea with no surgery. The W-H image shows a cornea processed 48 h after surgery without complete re-epithelialization. The dotted line shows the limit between the epithelium and stroma layers. Magnification 200×.