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. 2012 Oct 5;131(1):234–241. doi: 10.1093/toxsci/kfs292

Fig. 1.

Fig. 1.

Embryonic day-12 forelimbs were cultured in the presence of increasing concentrations of VPA or VPD (0, 0.6, 1.8, or 3.6mM) for 6 days. They were stained with 0.1% toluidine blue (A) to visualize cartilage formation and were scored according to their morphology (B and C). *p < 0.05.