H. Representative immunofluorescence staining of CLIMP-63 of femur growth plate sections from mice with indicated genotypes. Scale bar 10μm. Insets showed increased CLIMP-63 staining in Fgfr3/4 dKO mice. Scale bar 5 μm. Hypert= hypertrophic chondrocytes; pre-hypert= pre-hypertrophic chondrocytes; prolif = proliferating chondrocytes. 