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Naomi Matsumoto
https://orcid.org/0000-0002-9980-6092
Department of Epidemiology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
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Junya Shimizu
Department of Pediatrics, National Hospital Organization, Okayama Medical Center
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Yuji Yokoyama
Department of Pediatrics, Okayama Aiiku Clinic
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Hirokazu Tsukahara
Department of Pediatrics, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
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Takashi Yorifuji
https://orcid.org/0000-0003-2543-5441
Department of Epidemiology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University