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Sections of aortae representing each experimental group: WT LS (A and E), WT HS (B and F), Tff3−/− LS (C and G), Tff3−/− HS (D and H). Sections were stained with orcein for visualizing elastin content (A–D) and picrosirius red for visualizing collagen fibers (E–H). Objective: 10×; scale bar: 500 μm.
