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Tetsuya OKUNAKA
Respiratory Disease Center, Sanno Hospital, International University of Health and Welfare, 8-10-16 Akasaka, Minato-ku, Tokyo 107-0052
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Nobuyuki SAKANIWA
Respiratory Disease Center, Sanno Hospital, International University of Health and Welfare, 8-10-16 Akasaka, Minato-ku, Tokyo 107-0052
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Jitsuo USUDA
Department of Surgery, Tokyo Medical University, 6-7-1 Nishihinjuku, Shinjuku-ku, Tokyo 160-0023
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Norihiko IKEDA
Department of Surgery, Tokyo Medical University, 6-7-1 Nishihinjuku, Shinjuku-ku, Tokyo 160-0023