Spieler, D., Baeumer, N., Stebler, J., Koeprunner, M., Reichman-Fried, M., Teichmann, U., et al. (2004). Involvement of Pax6 and Otx2 in the forebrain-specific regulation of the vertebrate homeobox gene ANF/Hesx1. Developmental Biology, 269(2), 567-579. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6WDG-4C005M2-2-1&_cdi=6766&_user=38661&_orig=search&_coverDate=05%2F15%2F2004&_sk=997309997&view=c&wchp=dGLbVtz-zSkWz&md5=97a28c5185a7215442b449ab15f3b4a2&ie=/sdarticle.pdf.