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Yayoi Takata
Dept of Otorhinolaryngology, Osaka Medical Center and Research Institute for Maternal and Child Health
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Mitsuhito Sano
Dept of Otorhinolaryngology, Osaka Medical Center and Research Institute for Maternal and Child Health
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Nobuhiko Okamoto
Dept of Developmental Pediatrics, Osaka Medical Center and Research Institute for Maternal and Child Health