Association between maternal hemoglobin concentration and placental weight to birthweight ratio: The Japan Environment and Children's Study (JECS)

Naomi Mitsuda^*, Naw Awn J-P, Masamitsu Eitoku, Nagamasa Maeda, Mikiya Fujieda, Narufumi Suganuma, Michihiro Kamijima, Shin Yamazaki, Reiko Kishi, Nobuo Yaegashi, Koichi Hashimoto, Chisato Mori, Shuichi Ito, Zentaro Yamagata, Hidekuni Inadera, Takeo Nakayama, Hiroyasu Iso, Masayuki Shima, Youichi Kurozawa, Koichi KusuharaTakahiko Katoh

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