Tavella, S., Biticchi, R., Schito, A., Minina, E., Di Martino, D., Pagano, A., Vortkamp, A., Horton, W. A., Cancedda, R.,
& Garofalo, S. (2004). Targeted expression of SHH affects chondrocyte differentiation,
growth plate organization, and Sox9 expression. Journal of Bone and Mineral Research, 19(10), 1678-1688. doi:10.1359/JBMR.040706.