El-Magd, M. A., Allen, S. P., McGonnell, I. M., Mansour, A. A., Otto, A., & Patel, K. (2015). Shh regulates chick Ebf1 gene expression in somite development. Gene, 554(1), 87-95. https://doi.org/10.1016/j.gene.2014.10.028