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Osamu Yamada
Department of Head and Neck Surgery, Kuma Hospital, Kobe 650-0011, Japan
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Akira Miyauchi
Department of Surgery, Kuma Hospital, Kobe 650-0011, Japan
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Yasuhiro Ito
Department of Surgery, Kuma Hospital, Kobe 650-0011, Japan Clinical Trial Management Center, Kuma Hospital, Kobe 650-0011, Japan
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Ayako Nakayama
Department of Head and Neck Surgery, Kuma Hospital, Kobe 650-0011, Japan
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Tomonori Yabuta
Department of Surgery, Kuma Hospital, Kobe 650-0011, Japan
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Hiroo Masuoka
Department of Surgery, Kuma Hospital, Kobe 650-0011, Japan
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Mitsuhiro Fukushima
Department of Surgery, Kuma Hospital, Kobe 650-0011, Japan
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Takuya Higashiyama
Department of Surgery, Kuma Hospital, Kobe 650-0011, Japan
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Minoru Kihara
Department of Surgery, Kuma Hospital, Kobe 650-0011, Japan
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Kaoru Kobayashi
Department of Surgery, Kuma Hospital, Kobe 650-0011, Japan
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Akihiro Miya
Department of Surgery, Kuma Hospital, Kobe 650-0011, Japan