Takeshi Nagao, Ken Takahashi, Sho Takahashi, Ryo Yokomizo, Osamu Samura, Aikou Okamoto. Low-dose ferric carboxymaltose vs. oral iron for improving hemoglobin levels in postpartum East Asian women: a randomized controlled trial. Plos One. 2025. in Press
Haruna Okubo, Yuki Ito, Tomoko Kawai, Hiromi Kamura, Michihiro Yamamura, Mikiko Kaneko, Akihiro Hasegawa, Ken Takahashi, Masahisa Kobayashi, Hiroshi Kawame, et al. A prenatally diagnosed Klinefelter syndrome case of 46,XX/47,XXY mosaicism with partial deletion of Y chromosome. Taiwanese Journal of Obstetrics and Gynecology. 2024. in press
Ken Takahashi, Ryota Kobayashi, Kazuhiko Morikawa, Miku Maeda, Osamu Samura, Aikou Okamoto. Overdose of angiotensin II receptor blocker in the third trimester of pregnancy: A case report. Journal of Obstetrics and Gynaecology Research. 2024
COVID-19 mRNA vaccination status and concerns among pregnant women in Japan: a multicenter questionnaire survey
(75th Annual Congress of the Japan Society of Obstetrics and Gynecology. 2023)
Outcomes of pregnant women with COVID - 19 in Japan: a retrospective study
(74th Annual Congress of the Japan Society of Obstetrics and Gynecology. 2022)