Association between very advanced maternal age and adverse pregnancy outcomes: a cross sectional Japanese study by Kohei Ogawa, Kevin Y. Urayama, Shinji Tanigaki, Haruhiko Sago, Shoji Sato, Shigeru Saito, Naho Morisaki

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Caesarean Section of Multifetal Pregnancy by Shinji Tanigaki, Satoshi Takemori, Makoto Osaka, Momoe Watanabe, Aya Kitamura, Sayaka Ueyama, Kei Tanaka, Miho Matsushima, Youichi Kobayashi

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Successful Management and Risk Stratification by Exercise Right Heart Catheterization Before Pregnancy in a Patient With Pulmonary Arterial HypertensionNovel Teaching Points by Yoshiaki Yanagisawa, MD, Ayumi Goda, MD, PhD, Shinsuke Takeuchi, MD, Kaori Takeuchi, MD, Hanako Kikuchi, MD, Takumi Inami, MD, Shinji Tanigaki, MD, Takashi Kohno, MD, Kyoko Soejima, MD, Toru Satoh, MD

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COVID-19 mRNA vaccination status and concerns among pregnant women in Japan: a multicenter questionnaire survey by Ken Takahashi, Osamu Samura, Akihiro Hasegawa, Haruna Okubo, Keiji Morimoto, Madoka Horiya, Aikou Okamoto, Daigo Ochiai, Mamoru Tanaka, Masaki Sekiguchi, Naoyuki Miyasaka, Yuto Suzuki, Tsutomu Tabata, Eijiro Hayata, Masahiko Nakata, Tomoo Suzuki, Hirotaka Nishi, Yumi Toda, Shinji Tanigaki, Natsumi Furuya, Junichi Hasegawa, Shunsuke Tamaru, Yoshimasa Kamei, Seisuke Sayama, Takeshi Nagamatsu, Yuka Otera Takahashi, Michihiro Kitagawa, Tatsuya Arakaki, Akihiko Sekizawa

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