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[OE6-4]The Seagull Sign and Thinned Subplate: Hallmark Traits of Down Syndrome in Fetal Neurosonography?
○Ritsuko Pooh1,2, Wirada Dulyaphat1,3, Megumi Machida1, Kohtaro Uenishi1, Hiroyasu Ohashi2, Masayoshi Takeda2, Takako Nakamura1, Osamu Shimokawa2, Hideaki Chiyo1, Yoichi Matsubara1 (1.Fetal Brain Center, CRIFM Prenatal Medical Clinic, Osaka, Japan, 2.Department of Clinical Research, Ritz Medical Co.,Ltd. Osaka, Japan, 3.Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Mahidol University, Bangkok, Thailand)