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Expression of peroxisome proliferator-activated receptor-β (PPARβ), Indian hedgehog (Ihh), and Sox9 in developing ileum of FGFR-3−/− and wild-type mice. PPARβ (A), Ihh (B), and Sox9 (C) mRNA levels were measured by real-time PCR in RNA isolated from ileum of 7, 14, and 21-day-old FGFR-3−/− and wild-type mice. Values are means ± SE (n = 3–5 mice per group).
