Kohei Ogawa

Pregnancies after co-culture of cumulus cells with bovine embryos derived from in-vitro fertilization of in-vitro matured follicular oocytes

Kazufumi GOTO, Y. Kajihara, S. Kosaka et al. · Reproduction · 1988 · 296 citations

Oocyte, Fertility, Gynecology +17

Fertilisation of bovine oocytes by the injection of immobilised, killed spermatozoa.

Kazufumi GOTO, Akihiro Kinoshita, Y. Takuma et al. · PubMed · 1990 · 228 citations

Spermatogenesis, Oocyte, Fertility +18

Association between very advanced maternal age and adverse pregnancy outcomes: a cross sectional Japanese study

Kohei Ogawa, Kevin Y. Urayama, Shinji Tanigaki et al. · BMC Pregnancy and Childbirth · 2017 · 164 citations · Full text

Maternal age, history of miscarriage, and embryonic/fetal size are associated with cytogenetic results of spontaneous early miscarriages

Nobuaki Ozawa, Kohei Ogawa, A. Sasaki et al. · Journal of Assisted Reproduction and Genetics · 2019 · 89 citations · Full text

Fertility, Spontaneous Early Miscarriages, Miscarriage Testing +12

Association between perinatal anemia and postpartum depression: A prospective cohort study of Japanese women

Yuto Maeda, Kohei Ogawa, Naho Morisaki et al. · International Journal of Gynecology & Obstetrics · 2019 · 68 citations