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. 2020 Feb 5;29:0963689719893936. doi: 10.1177/0963689719893936

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© The Author(s) 2020

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 4. — Histological analysis of blood vessels after 63 days of implantation. Blood vessels in the control (A), low H₂S dosage (B), and high H₂S dosage (C) treated groups were stained by using the endothelial cell marker CD31 (pink color). (D) Gene expression of the endothelial cell marker CD31 after 63 days of implantation and (E) the number of vessels per area (mm²) in each device was measured. Data is plotted as mean with the standard error of mean. Statistical analysis was carried out using a one-way ANOVA with a Tukey post-hoc test, p < 0.05 (*) and p < 0.001 (**).