Yokoo, M., Sato, E.: Cumulus-oocyte complex interaction during oocyte maturation. Inter. Review. Cytol., 235: 251-291, 2004
Abe, Y., Hara, K., Matsumoto, H., Kobayashi, J., Sasada, H., Ekwall, H., Rodriguez-Martinez, H., Sato, E.: Feasibility of nylon-mesh holder for vitrification of bovine germinal vesicle oocytes in subsequent production of viable blastocysts. Biology of Reproduction, 72: 1416-1420, 2005
Hara, K., Abe, Y., Kumada, N., Aono, N., Kobayashi, J., Matsumoto, H., Sasada, H., Sato, E.: Extrusion and removal of lipid from the cytoplasm of porcine oocytes at the germinal vesicle stage: Centrifugation under hypertonic conditions influences vitrification. Cryobiology, 50: 216-222, 2005
Aono, N., Abe, Y., Hara, K., Sasada, H., Sato, E., Yoshida, H. Production of live offspring from mouse germinal vesicle-stage oocytes vitrified by a modofoed stepwise method, SWEID. Fertil. Steril., 84 (suppl. 2): 1078-1082, 2006