- Detection of caspase-9 activation in the cell death of the Bcl-x-deficient mouse embryo nervous system by cleavage sites-directed antisera. Fujita, E., Urase, K., Egashira, J., Miho, Y., Isahara, K., Uchiyama, Y., Isoai, A., Kumagai, H., Kuida, K., Motoyama, N., Momoi, T. Brain Res. Dev. Brain Res. (2000)