Matsubara, S.; Takayama, T.; Iwasaki, R.; Izumi, A.; Watanabe, T.; Sato, I. Chorion Laeve Trophoblasts of Preeclamptic Fetal Membranes: Histochemically Detectable Enzyme Activities Do Not Change at a Subcellular Level. Eur J Histochem 2009, 45, 211-8.