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. 2019 Apr 29;20(9):2108. doi: 10.3390/ijms20092108

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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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Representative light-microscope images of wound-healing assays for hGFs. (A) Cell migration rate was evaluated after 6 and 18 h of exposure to sham, SEMF, and PEMF. (B) Cell migration rate was evaluated after the exposure of mitomycin C pre-treated cells to sham, SEMF, and PEMF for 6 and 18 h. Scratch width was determined from images taken after both exposure times by measuring the distance between the two points with maximal distance on the outer edges of the cells. The average width of each scratch was calculated as a percentage of the original scratch width. The graph represents the cell migration efficiency, measured as the change in cell-free area over-time, assuming the width of the fresh wound was equal to 100%. The original microscope magnification was 10×. Scale bar = 0.5 cm. * p-Value ≤ 0.05 SEMF vs. sham and PEMF vs. sham.