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Aiko Oka
Department of Otorhinolaryngology, International University of Health and Welfare School of Medicine
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Kengo Kanai
Department of Otorhinolaryngology, International University of Health and Welfare School of Medicine Department of Otorhinolaryngology, Head and Neck Surgery, Japanese Red Cross Society Himeji Hospital
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Mitsuhiro Okano
Department of Otorhinolaryngology, International University of Health and Welfare School of Medicine