K Niwa

微粒子アルミナ(FGA)基板の機械的強度

K Niwa, H Yokoyama, K Murakawa, 1977 .

Penetration of bovine follicular oocytes by frozen-thawed spermatozoa in the presence of caffeine and heparin.

K Niwa, C K Park, O Ohgoda, 1989, Journal of reproduction and fertility.

Capacitation of bull spermatozoa and fertilization in vitro of cattle follicular oocytes matured in culture.

K Niwa, A. Iritani, A Iritani, 1977, Journal of reproduction and fertility.