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. 2020 Dec 6;8(12):573. doi: 10.3390/biomedicines8120573

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© 2020 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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Effects of blue LED light on cell proliferation in human keloid fibroblasts. (A,B) Proliferation observed 24 and 48 h after the treatment in keloid fibroblasts, respectively. (C,D) Proliferation observed 24 and 48 h after the treatment in perilesional keloid fibroblasts, respectively. Data are expressed as mean ± SEM. Each measure is repeated in triplicate at 24 h and in duplicate at 48 h. Statistical analysis: * p < 0.05; *** p < 0.001; **** p < 0.0001 vs. control (not irradiated cells), one-way ANOVA followed by Dunnett’s multiple comparison test.