Affiliation: | 1. Department of Obstetrics, Fukuoka Children’s Hospital, 2-5-1 Tojinmachi, Chuo-ku, Fukuoka, 810-0063, Japan 2. Department of Neonatal Cardiology, Fukuoka Children’s Hospital, Fukuoka, Japan 3. Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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