Velamentous Cord Insertion: Significance of Prenatal Detection to Predict Perinatal Complications by Junichi Hasegawa, Ryu Matsuoka, Kiyotake Ichizuka, Akihiko Sekizawa, Takashi Okai

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Ultrasound Diagnosis and Management of Umbilical Cord Abnormalities by Junichi Hasegawa, Ryu Matsuoka, Kiyotake Ichizuka, Akihiko Sekizawa, Takashi Okai

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Ultrasonographic findings of placental abruption observed on superb microvascular imaging by Reiko Suzuki, Natsumi Furuya, Junichi Hasegawa, Chika Homma, Yuriko Iwahata, Nao Suzuki

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Perinatal Risk Factors for the Development of Neonatal Intraventricular Hemorrhage in Preterm Infants by Yuriko Iwahata, Junichi Hasegawa, Chika Homma, Hideyuki Iwahata, Natsumi Furuya, Haruhiro Kondo, Nao Suzuki

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Prediction of hemorrhage in placenta previa by Junichi Hasegawa, Masamitsu Nakamura, Shoko Hamada, Ryu Matsuoka, Kiyotake Ichizuka, Akihiko Sekizawa, Takashi Okai

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Laparoscopic Resection of a Jejunal Inflammatory Fibroid Polyp that Caused Occult Gastrointestinal Bleeding, Diagnosed via Capsule Endoscopy and Double-Balloon Enteroscopy: A Case... by Chizu Kameda, Hideaki Miwa, Ryohei Kawabata, Daiki Marukawa, Masahiro Murakami, Shingo Noura, Junzo Shimizu, Junichi Hasegawa

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Effects of Hesperidin on the Progression of Hypercholesterolemia and Fatty Liver Induced by High-Cholesterol Diet in Rats by Xinhui Wang, Junichi Hasegawa, Yoshiyuki Kitamura, Zhongzhi Wang, Akiko Matsuda, Waka Shinoda, Norimasa Miura, Koji Kimura

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Clinical characteristics of pregnant women with COVID-19 in Japan: a nationwide questionnaire survey by Tatsuya Arakaki, Junichi Hasegawa, Akihiko Sekizawa, Tomoaki Ikeda, Isamu Ishiwata, Katsuyuki Kinoshita, the Japan Association of Obstetricians and Gynecologists (JAOG)

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A systematic review of massive transfusion protocol in obstetrics by Hiroaki Tanaka, Shigetaka Matsunaga, Tomoyuki Yamashita, Toshiyuki Okutomi, Atsushi Sakurai, Akihiko Sekizawa, Junichi Hasegawa, Katsuo Terui, Yasutaka Miyake, Jun Murotsuki, Tomoaki Ikeda

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Fetal heart rate evolution patterns in cerebral palsy associated with umbilical cord complications: a nationwide study by Junichi Hasegawa, Masahiro Nakao, Tomoaki Ikeda, Satoshi Toyokawa, Emi Jojima, Shoji Satoh, Kiyotake Ichizuka, Nanako Tamiya, Akihito Nakai, Keiya Fujimori, Tsugio Maeda, Satoru Takeda, Hideaki Suzuki, Shigeru Ueda, Mitsutoshi Iwashita, Tsuyomu Ikenoue

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Weekend and off-hour effects on the incidence of cerebral palsy: contribution of consolidated perinatal care by Satoshi Toyokawa, Junichi Hasegawa, Tsuyomu Ikenoue, Yuri Asano, Emi Jojima, Shoji Satoh, Tomoaki Ikeda, Kiyotake Ichizuka, Satoru Takeda, Nanako Tamiya, Akihito Nakai, Keiya Fujimori, Tsugio Maeda, Hideaki Masuzaki, Hideaki Suzuki, Shigeru Ueda

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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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