Masahiko Kutsukake , Ryosuke Ishihara , Katsutoshi Momose , Keiichi Isaka , Osamu Itokazu , Chinatsu Higuma , Takeshi Matsutani , Akihisa Matsuda , Koji Sasajima , Takahiko Hara and Kazuhiro Tamura
Reproductive Biology and Endocrinology 2008, 6:54doi:10.1186/1477-7827-6-54