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. 2022 Apr 13;9:rbac021. doi: 10.1093/rb/rbac021

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© The Author(s) 2022. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 9. — CD31 immunostaining after 1 (a), 2 (b), 4 (c) and 8 (d) weeks of implantation. Blood vessels were indicated by the red arrow. (e) Semiquantitative analysis of vascular distribution. The number of new blood vessels in the iPAG group was significantly higher than that of AG group. (*P < 0.05; **P < 0.01)