Raz, E. (2005). Germ cells: Sex and repression in mice. Current Biology, 15(15), R600-R603. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6VRT-4GTVWB4-J-3&_cdi=6243&_user=38661&_orig=browse&_coverDate=08%2F09%2F2005&_sk=999849984&view=c&wchp=dGLzVzz-zSkWA&md5=834694add52c8803bf7a02d78f7ba31c&ie=/sdarticle.pdf.