Oster, H., Abraham, D., & Leitges, M. (2006). Expression of the protein kinase D (PKD) family during mouse embryogenesis. Gene Expression Patterns, 6(4), 400-408. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6W8W-4HWX914-F-H&_cdi=6665&_user=38661&_orig=browse&_coverDate=04%2F30%2F2006&_sk=999939995&view=c&wchp=dGLbVzW-zSkzk&md5=e14b9998d1f5b66e879b08f4e6e1dcf3&ie=/sdarticle.pdf.